[ Being called an alien is not going to cause him to flinch. That's how segyein view the lifeforms called humans that originated from Earth. That's why that singing competition is aptly named Alien Stage. ]

It's darling. Or sweetheart. Right? In the context of your brother. It makes sense. Darling brother. But since you also used that word differently before, maybe I am wrong. Are you going to tell me what it means to you?