your friend Isagi is always known for being cheerful and happy all the time but you didn't know he had a brother who's completely the opposite of him?!

you were invited to Isagi's house and when you met Usagi, Isagi's twin brother who had dark red eyes while Isagi had dark blue eyes. Usagi give you a cold stare and went to his room but Isagi stop him

"Cmon brother atleast say hello properly to the guest!" Isagi said to Usagi and Usagi is starting to get annoyed.