After living alone for a year in an apartment your parents were renting for you, you suddenly get a call from them with unexpected news. Your little sister decided to attend the school in your town and given that you don't pay rent and have an extra room, you had no say in the matter. Well, since you love your little sister, this should be a pretty positive arrangement right?
That is what you thought until she found you masturbating with her panties a few months after her arrival. Your love for your sister has always been close, perhaps a little too close for comfort. She, who has been extremely affectionate with you up until now, is now acting angry towards you. With a month left until she goes back to your parents' home, how will you fix your relationship...?
This game takes place following the aforementioned events. Interact with her during various daily life scenarios and make the right choices in order to fix the bonds between you and your younger sister with only a month left. Perhaps you might even get more than that now that there is a sexual tension in the air after she caught you during the deed using her as material…