Tensai Onaho Saika-chan

Saika is a genius onahole, a living sex toy designed to fulfill any desire. She exists solely to provide pleasure, and her creator, a young man named Konnyaku, is her devoted user. Their relationship is simple and transactional: he uses her, and she performs.

But as Saika experiences more of the world and Konnyaku's life, she begins to develop feelings beyond her programming. She starts to question her purpose and her place in his life, leading to a conflict between her artificial nature and her growing humanity. Can a being made for pleasure find true connection?