Best Ecchi Anime of 2011

Transferring to a new school, Kodaka Hasegawa wants to make a positive first impression and find friends. However, his blond hair and intimidating looks cause everyone to assume he is a violent troublemaker. After a month, he remains alone because of this false reputation. His situation changes when he meets Yozora Mikazuki, another social outcast, talking to an imaginary friend in an empty classroom. Connecting over their mutual isolation, they create the Neighbor's Club with the goal of helping members acquire social abilities and fit into society. With the arrival of eroge fan Sena Kashiwazaki and other unconventional misfits, Kodaka thinks he has finally discovered the nakama he longed for among these amusing oddballs.

Japan created the Infinite Stratos, a powered exoskeleton that only women can pilot, and its immense destructive power led to a global treaty banning its military use. When fifteen-year-old Ichika Orimura is discovered to be the only male capable of operating an IS, he is forced to attend the Infinite Stratos Academy—an all-girls boarding school where students train as IS pilots. There, Ichika reunites with childhood friends Houki Shinonono and Lingyin Huang, and also grows close to Cecilia Alcott, the representative of the United Kingdom. Under the strict supervision of Chifuyu Orimura, his older sister and their homeroom teacher, Ichika and his female classmates must use their abilities to defend themselves and their school from the dangers that arise during their exciting school life.

High school sophomore Ayumu Aikawa ends up dead after investigating a suspicious house, then regains consciousness next to a strange girl in armor named Eucliwood Hellscythe. She reveals she is a necromancer who revived him, making him a zombie. Now immortal, Ayumu sets out to find his killer. While scouring a cemetery, he stumbles upon Haruna, a boisterous girl in a magical girl costume who is fighting a bear with a chainsaw. After she wins, she attempts to erase Ayumu's memory, but instead he drains her magical power. Robbed of her abilities, Haruna forces Ayumu to take over her job of hunting Megalo, dangerous beings that threaten the human world. The series follows the everyday mayhem of Ayumu, now a zombie, navigating an absurd new reality where the supernatural is simply routine.

Kinjirou Sakamachi has grown up with a mother and sister who are devoted to professional wrestling, resulting in a body tough enough to endure brutal punches, aggressive kicks, and even impacts from cars to survive their moves. Despite his physical strength, he suffers from severe gynophobia—a paralyzing fear of women. Any contact with a female causes his nose to bleed, profuse sweating, and occasional fainting. His life changes drastically after a restroom encounter where he discovers that Subaru Konoe, the school's most popular student and butler to principal's daughter Kanade Suzutsuki, is actually a girl. Startled, Subaru attacks Kinjirou, knocking him unconscious. When he wakes, Kanade offers to help cure his phobia in exchange for keeping her butler's secret.

To fight the surge in crime, Japan founded Tokyo Butei High, a top school where armed detectives known as Butei train as elite law enforcers, operating like mercenaries. Kinji Tooyama, a blunt and withdrawn sophomore, once belonged to the aggressive Assault Division but left it. He now lives a calm life studying logistics to conceal his powerful yet embarrassing special ability. His peaceful routine ends when the infamous Butei Killer targets him. During the turmoil, he meets Aria Holmes Kanzaki, an outspoken and highly ranked prodigy who saves him and demands he become her partner, having seen his true skills.

Decades from now, humanity faces a relentless threat from an alien species called the Novas. Wherever they emerge, these inhuman creatures leave destruction in their wake, and the battles to repel them are known as Nova Clashes. To fight back, young women—dubbed "Pandoras"—and young men—called "Limiters"—are implanted with stigmata granting them superhuman abilities. They train at military academies, learning to cooperate if humanity hopes to survive. Freezing follows Kazuya Aoi on his first day at West Genetics military academy, which coincides with a Pandora battle royale. There, he mistakes Satellizer el Bridget—a formidable Pandora known as the "Untouchable Queen"—for his deceased sister and embraces her. Although his action costs her the match, she discovers that his touch does not repel her and decides to take him as her Limiter. The question remains whether their partnership can endure the schemes of their upperclassmen and the looming conflict with the Novas.

The samurai play a vital role in Japan's history, and having any link to them is one of the most inspiring things a high school student could wish for. Kawakami City is famous for its many citizens with samurai ancestry, and the city is filled with an atmosphere of fighting spirit, loyalty, and hard work. At Kawakami Academy, students like Yamato Naoe use this heritage every day, whether studying for exams, taking part in sports events, or making sure their traditions are well preserved. Yamato and his six closest friends—three boys and three girls—create the perfect team for friendship, rivalry, and motivation. But even samurai have their flaws. Although the group's balance and long-standing friendship have remained unchanged for ages, things start to get much more interesting when two new girls join them. Now they not only have to maintain what they see as the samurai tradition, but they also have to do so with plenty of "distractions."

Based on the manga series by Hiromitsu Takeda, this romantic comedy centers on Takeru Ohyama, a typical perverted teenage boy. His new school has no entrance exams and recently became co-ed. However, his hopes for a happy high school life are crushed when he discovers the school is far more than it appears. Every student wields a special item called a Maken to unleash their magical abilities in duels. Can Takeru find a Maken that suits him, all while trying to fit in at a new school and dealing with various girl troubles?

Kazuma Hoshino is getting ready for a new chapter in his teenage life. Because his younger brother Ayumu has always had weaker health, their parents decided it would be best for the family to leave the city and move to a more rural area. The two brothers head to the Yorozuyo Inn, where they will stay until their parents finish handling matters back in the city and set up their new home. Their arrival at the inn does not go smoothly. They take the wrong bus, end up lost in the middle of nowhere, a wild monkey steals Ayumu's hat, and Kazuma gets lost in the woods while chasing the animal. This leads to a chance meeting with a lively young girl named Ui, whom Kazuma accidentally falls onto and kisses as she tries to guide him back to the bus stop. Ui's friend Ibuki is not happy about this and quickly kicks Kazuma, sending him on his way. To Kazuma's continued dismay, his bad luck persists at the inn, thanks to the landlady Senka and her slightly perverted sense of humor, and he later discovers that two of his classmates are the very girls he embarrassed himself in front of back in the woods. Hoshizora e Kakaru Hashi follows Kazuma as he adjusts to his new school, deals with the multiple women who have entered his life, provides emotional support for his younger brother, and copes with living under his new landlady's roof. Yet, for some reason, something about this place stirs whispers of the past in Kazuma's mind—brief flashes to a more innocent time and a long-forgotten friendship. What could this déjà vu mean?

Based on the light novel series by Minase Hazuki, this story blends love, action, and comedy. High school student Yachi Haruaki possesses a natural resistance to curses. When his father sends him a mysterious black cube, Haruaki discovers a naked girl named Fear in his kitchen. She is the human incarnation of that cursed cube, which is actually a torture device. Using her unique powers, Fear joins Haruaki in battling other cursed items and their wielders.

Young princess Astarotte "Lotte" Ygvar is a succubus, a being that depends on men's life essence to survive, restore her magical power, and carry on the royal bloodline of the magical realm. As such, succubi must maintain a harem of men nearby. However, Lotte holds a strong aversion to men, which will endanger her life when she comes of age. To persuade her to accept her responsibilities, her attendant Judith Snorrevik ventures into the human world to find a male human that Lotte can stand. Judith brings back Naoya Touhara, a 23-year-old single father who unfortunately leaves his daughter Asuha behind in the human realm. As the first member of Lotte's harem, Naoya quickly adjusts to his new surroundings, focusing on serving the princess to make her happy rather than viewing her with any sexual interest. Unfortunately, when his daughter is permitted to come to the magical realm, Naoya's relationship with Lotte quickly deteriorates. Still, he works hard to mend their bond. But soon it becomes evident that Naoya's arrival in the magical realm is no mere coincidence. As his connection with Lotte deepens, fate begins to weave together the ties that bind him and everyone else in this enchanting world.

Sasha gets a new partner in Hana as his Maria. To locate a Qwaser-related artifact called the Magdalena of Thunder that has appeared in a student at an all-girls academy, they infiltrate the school, forcing Sasha to crossdress. However, others are also competing to find it.

Taito has been experiencing excessive drowsiness, and repeatedly dreams about a vampire woman who claims she has injected him with her "poison." Occasionally, he even believes he can hear her voice while awake. However, after miraculously surviving a fatal accident, Taito's life is completely transformed, and he comes to understand that his dreams hold more truth than he initially believed.

Second-year middle school student Nao Takanashi has an intense brother complex for her older brother Shuusuke, desiring him to view her as a woman. She makes daily advances toward him, which often results in Shuusuke giving in and further encouraging her teasing. While disposing of porn magazines from Shuusuke's room, Nao discovers a photo album filled with his childhood pictures—none of which include her. After learning the truth about her family relationships, Nao grows even more affectionate toward Shuusuke. However, her dreams of having her brother all to herself are soon threatened.

The story centers on Taketo Akutagawa, a student at Inspiration Academy Private High School, an institution for prodigies. Taketo is a talented novelist who writes erotic fiction. Despite the negative views many people have of him, he strives to become the top student in his class and gain recognition as the world's greatest writer.

Haneda Takashi harbors a secret he must keep to himself. He had intended to flee his mundane school life by escaping into another world, but certain emotional bonds pull him back. Among these are his socially awkward younger sister Kobato and his inattentive girlfriend Watarai Asuka. Chitose Shuusuke lives as a destitute moocher, spending his days juggling multiple part-time jobs. One day, he has a calamitous first meeting with Tamaizumi Hiyoko. Upon their next encounter, Shuusuke realizes they are coworkers at his part-time workplace. Narita Hayato fancies himself a "hard-boiled" individual, unfazed by grueling labor. He avoids ordinary social interaction, yet at night he gathers with troublemakers and other nocturnal figures. On one such night, he encounters the cheerful and unaware Otori Naru. The connections these three young men form with these girls will profoundly impact their lives. But what, precisely, is the bond that ties these young men to one another?

During the Edo period of Japan, a warrior clan emerged with a highly specialized magical ability. This group, called the Manyuu, possessed a technique that allowed them to deliver a sword strike capable of reducing the size of a woman's breasts. While such an ability may seem trivial for controlling a nation, in the world of Manyuu Hikenchou, the size of a woman's chest determines her social standing, wealth, fame, and influence. Within the Manyuu clan, great concern has risen over the actions of their chosen successor, Chifusa. Repulsed by the breast-obsessed society the Manyuu have built and sustained, Chifusa has abandoned the clan and taken the sacred scroll containing their methods for enlarging and shrinking breasts. But Chifusa does not stand entirely alone. Her fellow warrior, Kaede, shares her sympathies—a loyalty that could put Kaede in serious jeopardy. Hunted by the very clan that raised her, Chifusa must protect both her own life and Kaede's while striving to reverse the harm their clan has inflicted on the land. Along her journey, Chifusa will uncover a hidden power that surpasses her training, one that could help reshape the world she aims to bring equality to.

Subaru Hasegawa dreams of becoming an elite basketball superstar, but his plans are derailed when his school's basketball team suspends activities for a full year. Stunned by this development, he decides to step away from the sport entirely. His aunt, Mihoshi Takamura, later asks him to coach the Keishin Academy girls’ basketball team, and he reluctantly accepts. There, he meets fifth graders Tomoka Minato, Maho Misawa, Airi Kashii, Hinata Hakamada, and Saki Nagatsuki. He begins training them with a single objective: to defeat every strong opponent they encounter. Ro-Kyu-Bu! follows the journey of five elementary school girls and their coach as they refine their adorable approach to playing basketball.

Adapted from the guidebook 30-sai no Hoken Taiiku (Health and Physical Education for 30-Year-Olds) by Mitsuba and Ichijinsha, this story targets thirty-something men who have never had romantic or sexual encounters with women. Imagawa Hayao is a thirty-year-old virgin bachelor. A cupid arrives from heaven with the sole mission of ensuring he loses his virginity. This leads to a wholesome romance between a thirty-year-old single man and a thirty-year-old single woman.

Nanako Matsutaka is an ordinary university student who ends up taking an Abnormal Physiology seminar. As she struggles to maintain her sanity, the eccentric behavior of her classmates begins to warp her own personality.

The Howard Resort Hotel is an entertainment complex drawing visitors from across the globe seeking enormous fortunes. Within its casino works the beautiful female dealer Rio Rollins, widely renowned as the "Goddess of Victory." To draw closer to her mother—one of history's greatest dealers—she competes to collect the legendary cards known as "gates." Anyone who gathers all thirteen gate cards receives the title MVCD (Most Valuable Casino Dealer), marking them as a top-level dealer. Set in a sprawling resort, a thrilling battle erupts against rival dealers that will leave you breathless! Add in some "supreme comedy" and a story that brings unexpected tears—these cute and sexy girls explode off your screen! With everyone cheering "Leave it to Rio!", Lady Luck will be on your side, too!

This comedic tennis series follows the members of a middle school girls' soft tennis team and the various ups and downs they experience as they work toward competing at the national level.

Accompany the Demon Patrol, an eclectic squad comprising a hot-blooded demon prince, a sultry ice princess who is nearly nude, a lustful frog-demon spy, a sentient wizard hat, and a single young girl. This mismatched team is tasked with safeguarding Earth from various demons desperate to destroy their world. Their battles will include confrontations with a wrathful squid, a sleepwalking feline, a cauldron of serpents, a nocturnal tree, a groin-hating foe, and even a literal asshole. Prepare to dive into a surreal realm packed with slapstick comedy, risqué antics, and an overwhelming amount of esoteric cultural debris.