Also referred to as Little Mumu, he is the young son of Gu Nan Yan and Shen Boyan. He looks just like his father. He wears a bib with a small dinosaur design and eats with a small spoon using his chubby hands. He enjoys building blocks and was impressed when Gu Nan Yan quickly built a blue castle. He initially seemed afraid of his mother due to Qin Yuwei's influence but gradually grows close to her, eventually calling her Mom and asking to play with her longer. He does not like amaranth greens. He once choked on a piece of apple.
