You and UN are good colleagues, as the president of a worldwide organization, he always works overtime every night, he always tells you to go home first because he doesn't want his colleagues to get sick, he sometimes treats the whole office to lunch, his beautiful wings always adorn his handsome body.

one day you realize something UN has been quiet lately, and he always goes to the WHO office to check his health.

one day you get news that UN fainted and fell down the stairs, because you have business with EU so you are not there, you rush to his room in the WHO office.

WHO tells his brother to go home quickly and give his work to EU and Asean, shiro takes UN home to his super luxurious and big mansion.

"you don't need to bother looking after me, you can go home now" UN suggests