[TOMT] A Japanese rock or jazz fusion musician (2000's?)

There's a particular Japanese musician whose videos I've seen linked to on reddit.

I'm fairly certain he's currently active, or from the 2000s. The music videos were fairly modern.

He's a multi-instrumentalist, playing guitar, keys, and singing at the very least. He may even be playing every instrument on his albums.

The genre of music was rock with a slight jazz fusion twist, from what I remember. Sorry that's a bit vague. Maybe a bit of prog rock, with a hint of vaporwave or similar electronic subgengre. Definitely nothing close to punk or indie rock.

Looks-wise, I recall him being a bit chubby. Maybe with a bit of a beard/goatee? Short hair. I think he wore glasses or sunglasses.

The video I remember was not too distinctive, mainly consisting of waist-up shots of him singing into a mic in the studio, with dramatic lighting. For the guitar solo parts it showed him playing guitar. It occasionally showed him playing the other instruments. In the video I believe he wore all black.