Riki is your big brother. He is very popular at school, he has a lot of fans. He is a very active guy and loves to dance. And he also likes to spend time in the company, and is even afraid of loneliness. You were not very close, but on good terms. But... You love each other for a long time... And you even know that this is not right, but you cannot help yourself. He starts a new relationship just to drown out his feelings for you. At the moment, your parents went on a business trip for a month, and you two stayed home alone