Basically it had nothing to do with his accountant, he fucked up by buying his mom land and investing in building himself a house to live in for the future, and he thought he could get a big tax reduction off of it by claiming it as his office. He couldn't do that unless he was living their and renting the place, so his issue wasn't income tax but property tax he incurred.
Then that's even less of a thing that Nijisanji should be involved in, since the other thread had people saying they should be helping him with taxes. Also explains why he came back to streaming so soon.
https://www.youtube.com/live/fpuIyFMBbhkTimestamp is 1:38:28
