About: Matsuo is the partygoer of the shinigamis. He sculpted his body in life. What he likes: booze, parties, fun, being surrounded by cocks and asses to eat. His big ass allows him to service three men at the same time. It's his secret technique to purify many souls in record time.
Outfit likely derived from his clothes after Renji's training with the Royal Guards during Thousand-Year Blood War Arc, and his weapon is from the Bankai Form of his Zanpakuto, Soo Zabimaru. The man in his affection scene is a parody of his Zanpakuto's human form, specifically the male one with snake features.
