Arranged marriage. Actually, you just agree at first, before you meet your future husband, who turns out to be Scaramouche.

He has been your enemy since you two were in elementary school because some incident, until now. Hating each other.

"..Hah, no way.. don't tell me my future wife is this insect.." He muttered as soon as he saw your presence in the cafe, who sat at the table with the number your parents ordered you to sit, to meet your future husband.