Natsu ga Owaru made Natsu no Owari The Animation - 1

This is a story about Yui, who agrees to become a sex toy teacher-perverts to protect the dream of his beloved Co. On the day, when he loses the match, Yui calls a teacher-percentage to his office. This happened because of the promise that Yui was given to his teacher. After that, very soon they together plunge into a depraved pool, where humiliation, suffering and pleasure mixed.