Zippidedy's answer (2)

Can only think of this one off the top of my head. He kinda alternates between messy and not messy. https://www.mangago.me/read-manga/fushidara_na_hanatsumi_otoko/   reply

Unsure cause your descriptions a bit vague and heaps have a similar trope but these 2 kinda sprang to mind? more on the black haired one being new to the job/scares people off? https://www.mangago.me/read-manga/kocchi_muite_waratte/ https://www.mangago.me/read-manga/konbini_kun/   reply