That JAV

My neighbor's sister Matsuri-chan has always been plain and cold, so I'm not very good at her.... However, my parents are close, and she agreed to take care of me for a week while my parents went on a trip! Despite her blunt attitude, my sister is always trying to mess with me whenever she can! She gets drunk and lascivious with me, and even forces me to sleep with her...! And then I suddenly realized. Is she actually talking about me? Experience life together with the big-breasted, tsundere, Matsuri-chan from a completely subjective point of view!