Ryuu Yamauchi
Oliver went ahead and made himself look like a badass.
Ten out of ten.
Ever since Lucy had blipped out of existence, Ryuu fell into a mixture of despair and anger. Alas, his dream lasted for... a few minutes. Befitting of his sad little fate, considering that nothing actually ever went his way. Heck, who thought he would become a math teacher? That was clearly Athalia's fault for not letting him become a shut-in.
...On a second thought, Ryuu decided that him becoming a teacher was for the better.
Cracking his neck, the anime-loving teacher marched over to the podium, taking off his sunglasses. The light hurt his eyes as usual, but exposing them for just a bit would not hurt that much.
"Name's Ryuu, but you can just call me 'sir'," Ryuu attempted to look formal, only to look like some gangster who had his spotlessly clean car dumped in a bucket of white paint. "Been here longer than you, so I actually know more than what my looks try to tell you. I'm a math teacher; my courses aren't a breeze, and as long as you do anything aside from disrupting my class and sleeping during my lecture, I won't... punish you.
"That's all."
Turning away from the podium, Ryuu walked away for a good distance before he finally smiled a bit. "I think I did decently," he told Oliver as he sat next to him.