A double-release from Toka Minamoto! The ruthless war between a big sister’s relentless, steamy assaults and a little brother struggling against their forbidden bond begins now!

Yuu is a slightly timid boy with a major soft spot for the “big sister” type. Yurika is a mischievous beauty who happens to have a thing for “little brothers.”

Thanks to their parents’ remarriage, these two are officially living together.

You’d think their one-shota interests would align perfectly—but think again! While Yuu is desperately trying to stay a “good boy” and keep his hands off her, Yurika is pulling out all the stops to corrupt him!

From crashing his bath time to playing “s**y tutor” and even “play w**stling”… under such a relentless barrage of steamy attacks, can Yuu possibly hold out without finally losing control!?