Hiding the little sister's body Love Live! School Idol Size Stories - Definitive Edition! chapter 8 by Ninten

Mei waited for Tomari to wake up for minutes on end, panicking that she might've killed her.

"Oh shit, oh shit oh shit... W-why did I do that??" Mei bonked her forehead, feeling very out of her element with Shiki's tech.

The hotheaded redhead heard footsteps and voices approaching and quickly grabbed Tomari's tiny shrunken body. The aquamarine-haired girl had begun to stir at just that moment, and struggled in Mei's clammy, sweaty hands.

"H-hey, what did you do to me? This can't be poss--" before Mei could hear what Tomari had to say, she hid her somewhere in the club room's changing area, where the girls kept spare clothes. Mei played it cool while the other members of Liella entered.

The question is, where did Mei hide Tomari?