The boy’s name is Liu, and the character in the middle must be “Muzi”. Thank you very much.

Possible name: Liu Muben (Muben, taken from "Woody Water Source", which means the roots of trees and the source of water, metaphorizing the root of things.)

Liu Muxing( Jupiter, which means one of the eight planets in the solar system, is the largest of the eight planets.)

Liu Muxi (osmanthus, meaning sweet-scented osmanthus.)

Liu Muzhou (wooden boat). From "The boat is done", it means that things are a foregone conclusion)

For reference.