Marginally #TLMC related, Diverse System's AD: HOUSE series are my favorite as far as doujin things go, though they're pretty much an indie label that happens to go to M3 and Comiket and organizes joint albums like these. Yes, that's cover art by Mika Pikazo. Yes, I own all AD: HOUSE albums, some still unwrapped because I bought them on bandcamp too. And the artbook. And tshirts which I won't wear like ever. And clear folders which weren't even sold! Yes, that's the classiest house music made.