While job hunting in Tokyo, I decided to rent out my family's vacant room to my cousin Yui. Despite being younger than me, she exudes a surprisingly mature charm and constantly lets her guard down around me, showing off her vulnerable side. I can't tell if she sees me as a man or is simply teasing me on purpose... These conflicting emotions have been tearing me apart day after day, and I've reached the point where I can't hold back any longer.