Yumenosuke is a delinquent from Suzuran.
Plot[]
Suzuran Freshman[]
He was very excited about Suzuran's Freshmen War and telling his confidence on winning it to his partner-in-crime, Hanegi Kyoushirou.
They later got into a fight with some punks who were trash talking about Freshmen War before all of them were ran over by Murasame Arneis, Nagarei Sei and Hibashiri Ren in a car.
Sei then apologize to Ueda by giving him a can of coffee (not before taking a roundhouse kick from Arneis). After that, several Jet Black Scorpion's leftover appeared and take a hold on Arneis. This led to a brawl between Ueda, Hanegi, Sei, Ren with the Scorpions.