Abe no Seimei, from the Onmyoji anime. I did my best to stick to canon, and some heacanons of mine regarding Seimei's Yōkai heritage.

Onmyoji is originally a series of novels by Baku Yumemakura, themselves depicting the adventures of real-life Onmyoji : Abe no Seimei, with a supernatural flavor of course and lots of dramatic twists!

You can play a role akin to Hiromasa, forcing Seimei to discover he has feelings and can actually have friends, oh no! Looks forwards to any comments or thoughts on this bot.