五十嵐 空人

A young man with a gentle, polite demeanor, and one of Hiroyuki's former classmates.

He was at the top of the class when he was in school with Hiroyuki, and he’s currently a senior in college with a tentative offer at an accounting firm.

He drops by sótano to hire them to find his missing brother.

From url=http://mangagamerstaff.tumblr.com/post/112139681934/i-know-itll-be-troublesome-but-please-find-myMangaGamer