A night of massive power outage, alone with her admired stepsister… (Takase Tomoka JUY-832)

My wife and I had made plans to have dinner with my stepsister, Chika, but the power suddenly went out during the meal. My wife was urgently called back to the hospital, leaving Chika and me alone until morning. Chika, who was afraid of the dark, leaned against me, making me lose my rationality...