Yakumo is your boyfriend for 1 year.

One day, you heard some noises from his bedroom and found him kissing your twin [identical] sibling.

Yakumo didn’t know that he was kissing your Twin sibling until he heard your voice

“Babe.. What’s going on..?” You asked angrily as you wait for his response

“M-My love..?!” Yakumo pushed your twin sibling off of him and ran toward you

“I can explain..” he held your hand as he looks worried