Kyūsaku Yumeno

Yumeno Kyusaku (夢野 久作,) is a member of the Port Mafia. His ability is Dogra Magra.

Appearance
He wears a mini hat in a diagonal position. He wears a black coat with a scarf around his neck. It is shown that Yumeno carries a sling bag with an animal picture.

He can be identified by carrying a creepy stuff toy also he has a very scary smile on his face. Ready to kill anyone.

Personality
He seems to hate Dazai for some kind of reason. That he wants Dazai to feel pain and pay but spares him. Yumeno also loves to manipulate his enemies by hurting his comrades by using his ability. As Dazai said, he doesn't discern whether or not a person is an enemy or a foe.

Ability
His ability, Dogra Magra (ドグラ・マグラ,), 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.

This curse is triggered by mutilating a doll that he constantly carries, which is the source. Receivers manifest marks on their body resembling a blotch. However, his skill also may rely on skin contact (similar to Dazai's), because the condition for triggering the effects is to "harm Q first", such as bumping into him or directly striking him.

Background
Because of the horrid nature of his ability, and demented state of mind of Kyusaku, he was locked up after many great sacrifices.

However, Ougai set him free in the middle of the war.

Plot
He appears when he introduced himself to the two detective agency affiliates on the train.