Aquamarine Hoshino

Height: 172 cm (5'7")

Ai Hoshino's son. He is the twin big brother of 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.