[shitaranana]A manga about a glasses-wearing girl in cycling shorts and a mischievous kid.

Glasses-wearing girl in snug cycling shorts discovers the fabric can't hold her curves, causing a dramatic rip that exposes her ample butt and breasts; a mischievous younger sibling bursts in, reacting with shocked delight as the torn outfit reveals her intimate body. The tension spikes into a frantic, passionate exchange where the siblings trade shocked exclamations and playful taunts, culminating in a wild, uninhibited ride that celebrates natural, unfiltered passion. The climax leaves the girl completely exposed as the sibling revels in the sight, promising an ongoing, provocative adventure.