Tenma Tsukamoto

Tenma Tsukamoto is the main character of School Rumble.

Episode 2
Tenma weighs herself while wearing a pink Towel after bathing off screen. As Tenma is disappointed with her weight, her younger sister Yakumo comes in with some clothes. 

Episode 3
She has a slumber party at her house where she takes a big Bubble Bath with Mikoto Suou, Eri Sawachika and Akira Takano. In the bath, she playfully splashes with Eri and Mikoto.