Post characters who are neat freaks

Levi from Attack on Titan!

yumichika ayasegawa (Bleach)

He's probably not actually a neat freak by most standards, but by some standards (especially his sister Tomoko's) Tomoki Kuroki from Watamote could be considered a neat freak. He just keeps his room clean and does household chores like a good son (and making Tomoko look terribly bad in comparison).