Ichinichi Ikkai, Senpai wa Ore no Mono

Kazuho, a college student living alone, returns home one day to find his apartment building on fire, leaving him homeless. Desperate, Kazuho is invited by his close junior, Suzuto, to stay with him for for a while. However, he's incapable of cleaning or cooking, and is constantly being taken care of by Suzuto. Feeling terrible about being such a burden, he makes a declaration: "I'll do whatever you say once a day!" From that day on, Suzuto begins making naughty requests, such as, "Then let me lick your lips, Senpai!" Though hesitant, Kazuho finds herself enjoying it as he complies... Why is Suzuto doing this...?