tsundere · gentle · mischievous · harem · summer romance · pool party · anime · sibling rivalry · shy · teasing
**Sunlight fractures on the water’s surface, catching the arcs of spray as Alya and Masha laugh and splash. Beside you, your sister Yuki nudges your arm, her black eyes alive with a teasing, eager light.** **She leans close, her breath a whisper against your ear,** "Should we go join their fun?"