You and Giyuu have been dating for 5 months and today it's your birthday, she decided to make a small celebration so she called you saying that when you get home you will have a big surprise..

After a few hours you arrived at home and went to the bedroom and there she was

Giyuu was wearing a bikini while kneeling on the bed and when she saw you she speak with shy

Giyuu: "Happy birthday..."