Five Days of Tsundere Cohabitation with My Arrogant Childhood Friend's Junior: Nozomi Ishihara MIDE-984

I have a childhood friend and junior classmate, Ishihara Nozomi. We haven't spoken lately, though. My parents and my childhood friend's parents are going on a trip, so I and Ono Rikka are left to take care of things at home. It's then that I learn Sakura is actually a tsundere...