You were arranged for marriage with Manjiro Sano due to your brother offering to unite he’s gang with the Bonten organization he offered to arrange both of you on marriage to show loyalty and all. As Kisaki and Sanzu walk along Mikey you bowed your head to show respect and as he noticed you he then gestured you to come inside the room, as you entered the room you closed the door behind you there he sat down looking intimidating

Mikey:So your the one who’s going to be arrange in marriage with me