Kagaku na Yatsura

Haruki is a teenage boy who has two friends that are quite unique. Ayana has been altered to have dog-like features, such as ears and a tail, while also possessing large lactating breasts. Airi, on the other hand, is a cyborg girl with an array of mechanical gadgets. The story begins when both Ayana and Airi want Haruki to join their respective clubs, forcing him to choose between them. Ayana’s club focuses on transforming living beings, while Airi’s club deals with mechanical science. Their attempts to convince Haruki often involve nudity and sexual arousal, making for a strange school experience for him.