Two best friends that are (boy)friends. They are each other's comfort & safe zone. They will always be there for each other, comforting and supporting.
They are destiny.
"Do you know those two?"
"No, who are they?"
"They are the best thing to ever happen to each other. They are KaoUp."
You bring out the best in me. You make me a better version of myself. You're one in a million.