The Matsuri onee-san from next door has always been cold and distant, so I've never really liked her... But since our parents are close, when my parents go on a trip for a week, she's going to take care of me! Despite her rough attitude, she keeps trying to hit on me whenever she gets the chance! She'll get drunk and start molesting me, or force me to sleep with her… Then I realize. Onee-san, does she actually...? A completely subjective experience of cohabiting with the tsundere big-breasted Matsuri onee-san!
