It's 'aight. Art's solid, even if some of the movement panels look a bit rough. The concept has room to grow, even if yokai live amongst us is a common enough trope. I like the fact the kid is a yokai too, rather than the expected special little human protagonist. Feels like it could use a hook or two.
If serialized, I think having this yakuza boss become the overarching thorn in the side of the protagonist would be the way to go.