Infinite Stratos is a media franchise originating with a light novel series by Izuru Yumizuru.

The original novels focus on Ichika, the only male student at a training academy for high-tech mech suit combat.

Manga

Infinite Stratos: Black Bunny/White Bitter

Laura Bodewig has a stuffed belly after binging on sweets before a meal, Ichika has the same problem but his appearance is unchanged.