The Wild Beast in His Suit... Vol.1 (TL Manga)

Miyuki, a woman invested in her career, has a secret. That secret is that she used to be the leader of a local gang group. She kept that fact swept away, but Hiroyuki Yamashita, the most dull guy from work, some how figures it out…! “I’ll keep your secret away with you.” Yamashita, who are you!? Vol.1, 50 pages