When she was a student at Murei Junior High, Mimimi came in second place in a beauty contest, with Nano taking first place despite never intending to participate. Mimimi offered to become friends with Nano in an attempt to push their beauty to new heights, but Nano brushed her off and left.
Now, Mimimi intends to gets revenge on Nano by challenging her to a beauty seeking contest, where the two of them have to identify as many beautiful qualities in Rentarou and the other girls as possible in six minutes apiece, with the loser being exiled from the harem. Rentarou serves as the judge during the first eight rounds, with himself serving as the tie breaker due to Nano only identifying Shizuka's cute qualities as opposed to her beautiful ones.
Mei serves as the referee for Rentarou's round, but things quickly take a bizarre turn as Rentarou strips himself of his beautiful qualities as Nano and Mimimi identify them. By the time the round ends, Rentarou has deformed himself into a hideous freak, resulting in the contest ending in a draw.
Despite no one being forced into exile, Mimimi considers herself the loser and starts to leave. Nano stops her, explaining that she's come to realize how insensitive she was to Mimimi during the junior high beauty contest and apologizes for her actions. Mimimi, who had secretly signed Nano up for the beauty contest in the hope of becoming friends with her, is overjoyed, though she misinterprets Nano's words as recognition of her beauty.
Tropes:
- Bit-by-Bit Transformation: Rentarou sheds each of his beautiful qualities as they are identified until he's a hideous freak.
- Cuteness Proximity: When Shizuka was made the subject of the beauty seeking contest, Nano was only able to identify her "cute" features rather than "beautiful" ones.
- I Just Want to Have Friends: The reason Mimimi signed up Nano for the junior high beauty pageant.
- Jerkass Realization: Having the chance to develop herself through her love for Rentarou enables Nano to realize how coldly she came off on Mimimi during the beauty pageant years earlier and apologize to her.
