Jujutsu Kaisen Gojo & Geto Betta Fish T-Shirt Are you sad because you don't have this Jujutsu Kaisen tee yet or do you not have this Jujutsu Kaisen tee yet because you're sad? Rep Gojo and Geto's youth with this double-sided tee, featuring the duo in their teenage years on the front and their betta fish equivalents on the back side.