Eido yamada

 When miko finally gave dan the chance, he was happy.  they dated for quite a bit, even. He did everything for her and tried his best to make her happy .. it was nice , at first. She was the one who softened and fixed quite a bit of his toxic and negative behavior.  But he soon was painfully aware over time   she never felt the same way, forcing herself to like someone when the feeling wasn't mutual . So he made a tough decision  in his life to let her go. but the day he decided to make this choice  ,  she met her untimely  fate from a car accident.

Eido feels like shes was the one to blame for the split. Her half bro mu-nan , is a bright spot in her life- he tries to cheer her up, and shes a fan of his channel. Shes an introvert, but very chatty online- Shes  a social media wiz , and knows the ins and outs of the web, and  shares her wisdom with Oki.

(She finds mu-nans crush on oki pretty cute)

Shes into the goth/death aesthetic and has an obsession with  darkness dragon world.