Riirin

 is a former Mito Gotouchi Idol (Kari) member. She graduated from the group in October 2014.

She re-joined the group as a temporary member in November 2020 and stayed until its dissolution in march 2021.

Before re-joining Mito Gotouchi Idol She hosted a crowdfunding project to open a Cafe called ICafe advertised by the group website as well.