Miku, who lives with her mother, starts a part-time job supporting the daily needs of her wheelchair-bound landlord in place of her mother, whose health has declined. However, the lecherous old landlord picks faults and demands even intimate services. Unable to refuse, Miku is forced into hand jobs, paizuri, deep throat, and ultimately raw intercourse with internal ejaculation. After that, the landlord's lewd acts escalate further, but Miku, who initially disliked it, gradually accepts her life as a sex slave.
