Ryou Amakusa

He is the older brother of Riohttps://anilist.co/character/208077 Ichikahttps://anilist.co/character/141687s best friend and the deputy manager of a prestigious company. He thinks that Ichika is the one and only and has a fanatical onesided love for her which leads him to make strong approaches to her. Source: Official Site translated edited