Matsuri-neechan from next door has always been aloof and cold, so I've always found her a bit difficult... But our parents get along well, and since my parents are going on a trip for a week, they've arranged for her to look after me! Despite her blunt attitude, she keeps bothering me whenever she gets the chance! She gets drunk and acts like a crazy woman, or forces me to sleep with her...! And then I suddenly realize. Could it be that Neechan actually...?! A completely subjective experience of cohabiting with the busty, tsundere Matsuri-neechan!
