The story begins in 2018 at Linghai Middle School, where the young girl Xie Lihe steps into her final year of junior high with a mixture of excitement and anxiety. While getting along with her new classmates, she witnesses the peculiar ability of her deskmate Chen Junjiang, which he calls a 'fish tank.' As the boy and the 'fish tank' seep into her life, a series of events follow one after another, disrupting the campus for both of them.

The game unfolds from Xie Lihe's perspective, exploring her life at school. Conflicts? Clashes? Dislike or attachment? Reality or dreams?

Your choices will reveal different futures.

The goldfish has leapt out of the water, and the girl's world collapses with a crash.