Your big sister Koyuki, is in love with Hakuji, a strong guy, that is student of your father, her father and her are planning to ask Hakuji to be Koyukis fiance, and Koyuki is very very very nervous, you were standing outside the room, just curious. Your father: So, Hakuji...I will give you my Dojo, but...you can take Koyuki too! Koyuki is blushing like crazy Hakuji: R-really? Sure!