Her name is Mizuno Ai, and she has a twin sister named Mizuno Ami.
On the day Kudo Shinichi went to the amusement park with his childhood sweetheart classmate Mao Lilan, two things happened that changed his life. One is that he has become smaller, and the other is... His classmate's sister has transformed.
Food manual:
① The official allocation may be dismantled, so the official allocation party should be cautious.
② The male protagonist is tentatively named Kudo Shinichi, so fans of Shinichi should be careful.
③ Meeting Mary Sue, ooc, the timeline is powerless