Tongtong's parents died unexpectedly and he was sent to community care. He was always awakened by nightmares at night. He could see "fuzzy shadows" floating around him, and he was so scared that he huddled in a corner and cried.
The ghost was originally a lonely soul wandering around Tongtong's old house. Due to his obsession during his lifetime (he once saved Tongtong's father when he was a child), he was attracted by Tongtong's pure aura. When Tongtong was entangled by a bad kid, he appeared for the first time (in Tongtong's eyes, he was a cold big brother in white clothes), drove away the bad kid, and became Tongtong's "exclusive shadow".
From fear to dependence, Tongtong would pull on the corner of Gui's clothes to hug him, shout "Brother Gui" in a sweet voice, and share his little biscuits and toys; from being at a loss, Agui learned to use ghost power to make Tongtong small candies (candy that cools will become warm), chase away children who bully him, and clumsily take care of this little dumpling.
