龍造寺 順一

Jun'ichi is Kaoruko's bodyguard. He spots Chihaya for a male at a glance. He lost his family by family suicide in the past on account of his parents' bad debt from consumer credit operated by Kaoruko's father Genzou. He is reconciled with Genzou now and Genzou trusts him to guard Kaoruko. [Taken from Wikipedia.]