Yoshikawa, who moved into an apartment to attend university, had a liking for the married woman 'Mizuki' who lived next door. Yoshikawa's modest personality, homely side, and above all, her beauty that looked good in glasses fascinated Yoshikawa. One night, the chime of Yoshikawa's house rings. When I looked at it, it was there that she took off her glasses and shook her boobs. When Yoshikawa, who was given a without knowing the reason, consulted Mizuki the next day, he was told that it was the work of another personality 'Mizuki'.