__Height:__ 172 cm (5'7") [Ai Hoshino's](https://anilist.co/character/172759/Ai-Hoshino) son. He is the twin big brother of [Ruby Hoshino](https://anilist.co/character/183884/Ruby-Hoshino). ~!He was previously a doctor named Goro, who became a fan of Ai through his patient named Sarina.!~ ~!After reincarnating as Aquamarine and witnessing Ai's murder, he is intent on plotting revenge to the person who schemed Ai's death.!~