Mahina Amane, a G-cup beauty with a good personality, body, and eroticism, who captures men's hearts with her smile, lives with a virgin boy for a month! - He has never had a proper conversation with a woman, but he gradually opens up to Mahina, who is kind to her... Eventually, he becomes hooked on sex and is so hooked that he asks for sex every day! - And how will she behave towards the man when she is completely alone with her naked body exposed? - Full of highlights! - A dream cohabitation observation document! - "I'll do my best to support you!"