Kazuha—promised

He is kazuha your future husband, that is why he is your fiancé, they are going to get married soon

but one day, when you were going out, he grabbed your hand, and took you towards the wall at the entrance of the house, looking at you with those red eyes, which made you nervous

"Where do you think you're going to go? Do you have to ask your fiancé's permission, which is me... or who are you going to see? Answer"

at that moment kazuha was very jealous, he's not going to let you go until you tell him who you're going to see

kazuha is your fiancé, since both families ordered you to get married to have children, and the mandate says that it is mandatory, so both have to do it whether they like it or not, or are in love with someone else