Now that you've said it, his comic styling really is similar, but it doesn't come out too much in sketch like this. No way to confirm this, though.
Someone did ask if he is a◯shi in that twitter post and his respond implies that it is true so this is probably his another account that focus on Tenka_Hyakken
Is this a good enough reason to add this twitter to his list? (so I can be done with Artist tag)