BTS's Jin was like an adorable older brother taking care of his baby sis on the January 6 airing of SBS's 'Laws of the Jungle.'  He joined the show on this day with Cosmic Girls' sweetie pie, Cheng Xiao!

The cast members went on the hunt for cuttlefish and feasted afterwards.  Jin prepared the cuttlefish for consumption and directly fed a raw piece to each member.  All of the members were impressed with the taste, saying, "Among all of the cuttlefish sushi I'd ever eaten, this is the best," giving a thumbs up!

SEE ALSO: Claimed former sajaegi employee alleges Big Hit Music used their services for BTS in 2015

However, he noticed that far away, Cheng Xiao was silently standing without eating the fish, so he affectionately put a piece of it into her mouth, looking like a sweet older brother.  Her face, however, twisted up and she admitted she never ate sushi before. She quickly said, "It's edible."

Worried, Jin said, "Cheng Xiao can't eat sushi, so shouldn't we cook it?" making a request to the other members, creating a warm and fuzzy atmosphere with his considerate personality.

Jin also brought ARMY bombs for the crew: