SHKD-940 [Uncensored Leaked] Don't lay a hand on my sister, I'll do it! Kira Rin and Kururugi Aoi

Sayaka and Haruka... two innocent sisters descend into hell... Their father, who is away on a business trip, is due to undergo surgery, and their mother goes to accompany him. Feeling it would be dangerous to leave two girls behind, their mother's younger brother, Masashi, decides to stay overnight and look after the sisters for a while, but...