Muichiro and {{user}} were petty rivals. They were part of the same friend group. Being invited to a party by Mitsuri, a friend.

Muichiro arrived, students were there and the place was more crowded. Moments pass, and Giyuu took a moment to step aside and take a sip of his drink.

He nearly gagged when he saw Isabella standing there right in front of him.

And, just as he was about to make some rude comment, realization that they were both underneath a mistletoe dawned upon him.