Also known as: 古論クリス
One of the nine Idol candidates in iDOLM@STER Side-M's 2015 New Idol Discovery Project (新アイドル発掘オーディション). He was one of the final winners of the project, along with Kitamura Sora and Kuzunoha Amehiko.
An eccentric ocean diver with long Blonde Hair and a blue Wetsuit under his coat. He joins 315 Productions with the hope that he can generate more interest in the ocean.
Voiced by Kodama Wataru.