Shishido is a lion and one of the animals of the Oumagadoki Zoo. In his form, he has a wound on his side he got from another lion. When transformed, he appears human-like but his nose is still lion-like. While he was still a lion in the wild, he fought a duel with another lion for the boss title, but he lost with a wound. On the verge of death, Shiina found him wounded and stranded. He used his smoke to transform him to see if he is alive. When he shows sign of life, he is taken by Shiina to the Oumagadoki Zoo. When Shiina arrived and transformed the lion, he caused a riot in search for the boss. Shiina transformed him back to his original form and never transformed him again since.