Oikawa Tooru might have come from a 'primitive time' he sure can fake it. He contributes this to all the science fiction movies, manga, and novels that he read. He's also able to flatter and bluff his way into making people treat him nicely. Act humble but excited to be part of the legion, give out genuine compliments, smile that smile that girls to fawn over him and come watch him play volleyball even if he didn't play for school's team.

Because of this, he's probably have a better time than most of his new Legion comrades. There are the few beings that due try to be rude at him and his new Legion Teammates, but he's able to cut them down with his sugar coated, razor tongue. He's not a nice person, but if you're his he'll have your back no questions asked.

"Perhaps you should join," he tells to one such rude guest who is currently questioning his intelligence because he's from the past. His tone is respectful, his eyes locked with the rude guest. "Show us how to fight against Sun Eaters in the like. We would surely benefit from your expertise."

It's obvious the guest in question has never fought in their life.