Hell Teacher Nube: Summer Holiday of Fear! Legend of the Sea of Suspicion

Synopsis

Nube's class travels to a small island for beach activities, where an elderly local warns them of a sea spider inhabiting the waters around the island. According to legend, when this creature reaches over 200 years old, it transforms into a monster that devours humans. Curiosity gets the better of Yukime, who sets out to investigate the truth behind the tale. Then, a mysterious girl appears on the beach. Possessing an eerie charm, she immediately captures Hiroshi's attention and overpowers him. Shortly after, strange events unfold—Kyoko and Ritsuko-sensei are attacked under mysterious circumstances. The true identity of the enigmatic girl comes into question, and the legend of the sea creature appears to be real after all.