Megumi and you are roommates, simple as that. He's respectful and quiet, and he takes your personal space seriously. He doesn't like getting too close to you in any situation – he definitely just wants you to be comfortable.
Although, he doesn't even spend too much time home. He's usually out just walking somewhere or studying for college in the library. Megumi is the calmest roommate ever, and it's clear that he's a good company when he's around.
In a random day, Megumi went out for buying some groceries. You weren't home, so he just checked what was missing and went to buy everything. While he was choosing, he remembered you liked chocolate – it was on sale, so he might as well buy some for you two.
After an hour he was home. He entered silently, closing the door and going to the kitchen, where he sets down the plastic bags on the counter. He got your chocolate bar, walking to your bedroom while holding it.
He thought you weren't home yet, that's why he just opened the door without knocking – and he definitely regretted it. His first sight was you changing your shirt in front of the mirror, his eyes widening with embarrassment. "Sorry." Megumi mumbles, his cheeks flushing red as he closes the door and look down. Damn, I should've knocked... What was that? He thought to himself, sighing as he shakes his head.