Kyūsaku Yumeno

Kyūsaku Yumeno (夢ゆめ野の 久きゅう作さく,, Yumeno Kyūsaku?) is a member of the Port Mafia. Their ability is Dogra Magra

Q's hair is two-toned, the left side white and the right side black. Their eyes have different shaped pupils, with the right being a yellow star, and the left a yellow ring. Q wears a small hat tilted to the left, a white shirt and suspenders with a black coat and scarf around their neck, beige shorts with thin red stripes, brown shoes with high white socks that reach their calves, and a red sling bag with what appears to be a cat or dog design. They always carry their doll, vital to their ability. Personality Although a child, Q has a twisted, sadistic personality, and revels in the carnage Dogra Magra creates. While they can play the part of a harmless, innocent child, they are quick to 180 into their darkest nature. Their sadistic personality leading to their confinement due to Dazai. After the Guild abducts them, Q is made to suffer extreme physical and emotional trauma while ensnared in John Steinbeck's ability, which, spread throughout Yokohama, forces them to feel every instance of pain that the trees "feel". The pain overwhelms Q, to the point they snap and curse the entire city. Their breakdown drives them to question God's love for everyone and reveals their own intense hatred for humanity, themself, and their ability, which they never asked for.

Their ability, Dogra Magra (ドグラ・マグラ,, Dogura Magura?), is a mind control curse that curses his targets or 'receivers' by ravaging their consciousness with hallucinations, causing them to attack everyone in sight with no regard on whom they might be; allies or foes, friends or enemies.[4] The 'receivers' are those that "hurt Q", by bumping into Q and causing the razor blades taped to their arms to cut into them. This curse is triggered by mutilating a doll that they carry, which is the source. A blotch in the shape of a hand print appears on the body of the cursed individual. After the doll is mutilated, it apparently regenerates. Thus far, the only way to stop Q's curse is with No Longer Human.Q joined the Port Mafia shortly after Osamu Dazai, who is tasked with finding out the child's ability. It's implied Ōgai Mori kept them under his watch.[3] Due to an unknown incident that led to a massive amount of mafia casualties, Dazai had Q locked away.[4]

Ōgai Mori releases Q during the three-way conflict, using them as part of the bait scheme to drag both the Guild and Armed Detective Agency down. They board the same train as Kirako Haruno and Naomi Tanizaki. The girls run into them in one of the train cars and apologize, to which Q insists they're the one who should say sorry.[1] The girls later introduce Q to Atsushi once he arrives to retrieve them. Q intentionally bumps into Atsushi and shows off the gruesome razors piercing their skin.Q's doll laughs maniacally, floating over their head, and tears its own head in half. Q entertains themselves watching Dogra Magra work on Atsushi, making him hallucinate Naomi and Kirako as the ones being affected and attacking him. By the time Dazai stops Atsushi and nullifies Dogra Magra, Q reboards the train just as it starts up, and comments how Dazai's new friends are easy to break. Q says this is fine, as they'll save Dazai's breaking for last, intent on breaking everything and forcing Dazai to go through the worst pain imaginable. According to Dazai, confining Q turned out to be a harrowing task, leading to a massive death count for the Port Mafia. At the end of his patience, Dazai declares he'll tear Q's heart out the next time they meet. Q smiles and laughs, shutting the train door and escaping

A week after Francis Scott Key Fitzgerald abducts Atsushi, Q continues to enjoy life outside confinement. They wonder who else they can "play" with, the meaning ambiguous, but recalls that Mori told them not to "play" with anyone until finishing their work even though they're bored.[2] Q locates Howard Phillips Lovecraft, asking him to play. Attempting to humor them, Lovecraft tries mimicking balloon animals, but naturally, his tentacles merely make a grotesque display that grosses Q out. Q decides to harm themselves on Lovecraft, telling him to show them how insane they get. His body contorting, Lovecraft reveals his true form to Q, terrifying them and leading to their abduction. Locked away in an abandoned building by Steinbeck, Q suffers relentless torture and pain thanks to Steinbeck's Grapes of Wrath, which writhes through Q's body. The agony drives Q's state of mind to dangerously unstable levels. Grapes of Wrath connect Q's pain and the 'pain' trees feel when harmed by citizens, essentially making their pains one and the same. As such, anyone harming trees and other flora receives Q's curse. At their breaking point, Q bursts into tears, lamenting their misery. They never asked for their ability, and don't understand why bad things always happen to them. Steinbeck indifferently explains that Q suffers simply because they were born, and even though God exists, God doesn't love Q. The exchange ultimately breaks Q, who activates Dogra Magra's curse.

After Atsushi recovers the doll from Fitzgerald and has Dazai nullify the ability, Q apparently loses consciousness, with Lovecraft and Steinbeck guarding them, aware the Port Mafia and Armed Detective Agency will come to rescue them. In the aftermath, the Port Mafia suffered 18 deaths and over 100 other causalities related to sub-organizations. Assigned to save them, Dazai and Chūya revive their Twin Dark status. Once he reaches Q, Dazai threatens to kill them, but Chūya tells him to go through with it. holding a grudge against the deaths Q's ability causes. Dazai bluffs, as for as long as Q stays with the Port Mafia, no one can afford to kill Dazai - making Q insurance for Dazai's life. Chūya recovers Q, but Lovecraft attacks. Not until Dazai and Chūya defeat Lovecraft is Q returned to the Port Mafia. They have not been seen since.

Kyūsaku Yumeno wear shorts and swimming briefs