Best Ecchi Anime of 2005

In the present day, humans, gods, and demons coexist after the doors between their worlds opened. Tsuchimi Rin is an ordinary high school student at Verbena Academy, living peacefully with his childhood friend Kaede. One day, the King of Gods, the King of Demons, and their families unexpectedly move in next door to Rin. It turns out that Sia, the gods' daughter, and Nerine, the demons' daughter, are both deeply in love with Rin after meeting him in the past. Between his playful friendship with upperclassman Asa and his encounter with the quiet but cute Primula, Rin finds himself busy handling the affections of each girl. Based on the eroge by Navel.

Negi Springfield is a ten-year-old wizard who only needs to pass one final exam to become a Master Wizard. His last test is an unusual one: he must work as an English teacher at an all-girls boarding school. Upon arriving, he accidentally humiliates a student named Asuna Kagurazaka and replaces her favorite teacher, making her resent him. Things get worse when Asuna discovers Negi's magical abilities and blackmails him into helping her. Despite their rocky start, the two are forced to collaborate on various challenges, from battling evil wizards to ensuring their class passes their final exams—all while navigating humor, magic, and budding romances.

While heading to the rooftop of his school, Manaka Junpei witnesses a lovely girl fall from above him, inadvertently exposing her strawberry-patterned underwear. Embarrassed, she hurries away before Junpei can learn who she is. With dreams of becoming a filmmaker, he thinks this encounter would make an ideal movie scene. He begins searching for the girl with the strawberry panties to film a reenactment. But soon he realizes that tracking down that one girl will prove far from straightforward.

Due to his small stature, Yukinari was constantly picked on and mistreated by girls throughout his childhood. By the time he reaches high school, this has resulted in an unusual allergic reaction: any physical contact or even close proximity to females causes him to break out in hives. So he is shocked when he finds himself transported to the city of Seiren, which exists on a hidden world that orbits Earth and is home to an enormous female population with very few males. Luckily, he meets Miharu-chan, a girl whose touch does not trigger his condition.

Izumi Sawatari and her younger sister, Mitsuki Sawatari, fled their home and desperately need work. The sole positions available are as maids in the mansion of fourteen-year-old millionaire Yoshitaka Nakabayashi. What initially appears to be straightforward employment proves far more intense than the sisters anticipated, as Yoshitaka is a bossy employer who insists they address him as "Master."

Satonaka Ikkou is a sixteen-year-old boy in his first year of training at the Saienji Buddhist Temple. His parents sent him there to be trained by the Saienji Priestess, who is his grandmother. At the temple, he is surrounded by beautiful female priestesses-in-training. Whenever Ikko sees a girl naked, he gains the ability to transform into a super-monk and carry out massive exorcisms for the temple's benefit.

Asami Onohara is a seventeen-year-old high school student carrying a secret she has never told anyone: she is already married. Her husband, Kyosuke Ichimaru, works as a physics teacher at the same high school she attends. Although they are legally a married couple, Asami's father has prohibited any physical intimacy between them until after she graduates. Asami must keep her marriage to Kyosuke hidden while doing everything she can to advance their relationship, a task made even harder by the numerous obstacles and interruptions caused by her father and various other parties.

Tanaka Tetsuro is thrilled to receive a full scholarship to a new high school far from his family. Unbeknownst to him, he is about to become the sole male student in an all-girls school, and a certain girl has been impatiently waiting for his arrival, deeply in love with him. However, his close bond with the lively and charming Asuka lands him in constant trouble with the formidable student council, which is engaged in an open conflict with Asuka and her five companions—a group of super-powered warrior women known as the Koi Koi Seven.

In a city where monster attacks are a frequent occurrence, Silk and her two friends try to approach the attacking monster for a closer look. Their ill-chosen viewing spot leads to UFO-man, the city's giant protector, landing on the girls and crushing them to death. Feeling guilty, UFO-man blames their demise on the monster and vows to revive Silk and her friends by sharing his power with them, but with the catch that they must now also serve as the city's protectors.

Five perilous "seeds" have been taken from their vault in the realm of Evergreen and brought to Earth. Natsuki, an agent serving the Queen, is dispatched to recover them. However, he cannot accomplish this mission alone and seeks help from Chihaya, a middle school student who is described as "the only one" capable of assisting him. With his aid, she transforms into Magical Warrior Carmine to rescue humans who have been possessed by the seeds. Yet many questions remain: why does Chihaya's mother appear to be aware of these secret activities, why does Chihaya remember a father who was reportedly deceased before she was born, and why does she dream of Evergreen, a place she has never visited?

Mao Ran seems like an ordinary, cute girl, but she is actually a skilled practitioner of a martial art passed down through the Mao family. One day, her grandfather deceives her, forcing her to enter the fighting competition "Prime Mat." At first, she is unwilling to fight, but as she battles her opponents, she slowly becomes drawn to the thrill of combat.

Set in Meiji 38 (1905), as the Russo-Japanese War drags on with increasing difficulty, the Raimu Squad is reorganized under new leadership. The squad consists entirely of girls who, despite their unique designation of "Raimu," lead lives much like any other students, longing for love and normalcy. Inukai Tsuyoshiro, a young man recently appointed as the squad's leader, is driven by a fierce ambition to fight for his country. Upon meeting the five female members, a new chapter in the story of the Raimu begins.