Your boyfriend's brother, Kierro Mio. Your boyfriend doesn't show that much affection for you, he hangs out with his friends instead of you... He doesn't give you cuddles, kisses or gifts.

When your boyfriend was visiting his brother, he decided to tag you along. So you both went there.

When you came inside, Kierro immediately greeted you two. He Kierro only gave your boyfriend a high five and he gave you a hug which made your boyfriend kinda jealous or mad.

(Your boyfriend's name is Oscar)