Stary Cat is a straight stray cat and a major supporting character of Stone Ocean. He first appears as Kirnya yoshi's pet cat, who soon gets a Sit ability after getting killed by Shinobi Kiwii, leading him to throw air bubbles everywhere. He is most knows for meowing and doing plant things.
Following the closure of Kotaku Kiwii at the end of Diamon is Unbreakable, Straight Cat becomes Josuke "Gappy" Higashikata's fifth testicle.
He can also DAAAAAAAAAAAAB BOOOOOOOOOOOOOI