Kobayashi-san Chi no Maid Dragon: Okomorigurashi no Fafnir

From Seven Seas:

Fafnir is a dark, brooding curse dragon from the same world as Tohru, Kanna, and their friends. He’s also an otaku who’s as obsessed with games, merch, and doujinshi as he is with gold, jewels, and destroying all humans. This latest spin-off from the highly popular Miss Kobayashi’s Dragon Maid offers a peek into the timeless bromance of Fafnir and Takiya, two otaku sharing an apartment. The life of a recluse is busier than you might expect!