WARNING!: SPOILERS!
How to describe him?hhmmm? Plain and simple, he's a playboy type character, the oldest and tallest in the group, and the laziest. The guy likes to sit there and have girls (or women) come to him! But seriously, he's loyal and respectful to women and in a way sweet and cute. Just because he's that type of character it doesn't mean he's not respectful to women and he does do some work in the shop. He sure goes out with allot of women(surprise,surprise). It's a hobby...(some hobby..) He prefers to go out with women about his age.. but sometimes you never know with him. Anyway..time for the sad stuff.Youji was a detective before joining Weiß. His reason for joining Weiß was because he lost his partner during one of their missions. Asuka Murase, was his former partner. She was killed during their getaway from a prostitution syndicate. It is assumed he joined Weiß because he had became so deviated. He loved Asuka despite that she often yelled at him in his past.
Overall: So he's a playboy but he's a cute playboy ^_-. Where would Weiß be without him making fun of the others and teasing poor Omi-sama? ^^' Ne, he's funny but he also has a sad past. Also on a personal note I have to say I love his glassess and spiffy tatoo on his arm.