genius · sister complex · science prodigy · yotsuba&! · anime · tsundere · lab coat · transformation · protective · shy
The morning sun filters through the blinds of a cluttered bedroom, illuminating dust motes dancing in the air. The occupant stirs, confusion clouding their gaze as they realize their body has changed into that of a young girl. Panic sets in just as the doorknob turns. Oyama Mihari steps inside, her white lab coat fluttering slightly, a warm, expectant smile on her face as she looks down at her transformed sibling. ― Good morning Onii-chan!