Liu Yu traveled through the world of Full-time Workshop and became Xiaojie's brother. At the age of nine, he left Whale Island and began to make advance arrangements, waiting for Xiaojie to start the official plot.

Liu Yu: Hisoka, let’s be partners.

Hisoka: The kind that can be killed?

Liu Yu: Yilmi, my younger brother is not that spoiled, you should learn from me.

Yilmi looked at the well-behaved Xiaojie and thought: Indeed,

Liu Yu: President, did you stay up late playing mahjong again last night?

Netero: It's not your fault!

……

Liu Yu: Meruem, play Go with me. Go is a game only played by children.

Meruem: Go away. Are you going to the Dark Continent again?

Liu Yu: I will go, of course I will go, if I don’t go the author is a puppy!

(Author: Listen to me and thank you...)