B-Rank Adventurer With a Bad Guy Face Becomes a Father for the Hero and His Childhood Friends悪人面したＢ級冒険者 ; 悪人面したＢ級冒険者 主人公とその幼馴染たちのパパになる ; Akuninzura shita B-kyuu Boukensha: Shujinkou to Sono Osananajimi-tachi no Papa ni naru ; A B-Rank Adventurer With an Evil Face Becomes a Father for the Hero and His Childhood Friends ; B-Grade Adventurer With a Bad Guy Face Becomes a Daddy to the Hero and His Fellow Children