Atatasuki is Exp 8’s prototype and has many glitches that were fixed in subsequent prototypes. He embraces his glitches as his identity and turns his flaws into weapons. The lack of a proper cooling fan allows Atatasuki to heat up his whole body and to cook his favorite meal: egg-free muffins. Though he is comedic outwardly, Atatasuki harbors deep sadness. The only thing he loves more than the muffins he creates is his dear sister, Kawai. Will his passion be strong enough to surpass his flaws?