I have a childhood friend who is younger than me. Our parents are close, so I've been entrusted with taking care of my childhood friend Yoru for five days while both of our parents are away on a trip. Although she has a cold attitude, she gets into my bed because she's scared to sleep alone, and she also bathes with me wearing her school swimsuit because she's scared and embarrassed to be alone. Yoru is competitive and cheeky, but I can't hate her, and she keeps toying with me! Is her naughty behavior while acting tough a sign of her affection? A subjective video of a tsundere cohabitation life!