Zodiac sign: Pisces
She's the character the brothers end up assigned to keep tabs on. Born on the exact day her older sister Momoka died, she's carried that weight her whole life—her family basically fell apart after it happened, and now she only has her mom.
The core of her story revolves around Momoka's old diary, which she has and which seems to predict future events. This becomes an obsession. She's convinced herself that if she can become Momoka, somehow recreate her sister's life, she might be able to put her broken family back together. She'll go to pretty extreme lengths to make sure whatever's written in that diary comes true, even when it clearly isn't healthy.
Content compiled by AnimeList.moe from publicly available sources.
