https://www.pixiv.net/en/users/1523518
https://twitter.com/daikokuten20

support the artist at:
https://daikokuten.fanbox.cc/ (extra variants, still censored, unlimited at 500 yen/ ~4.3 USD
https://www.patreon.com/Daikokuten
https://fantia.jp/fanclubs/310915

for CG sets:
https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG20826.html
https://www.dmm.co.jp/dc/doujin/-/list/=/article=maker/id=28566/

Collection of this artist artwork from various sources, with duplicate removed. Also double-checked with other galleries on ehentai to find lost works, which are a lot (about 1/3rd of the gallery are deleted). Samples are not included.

Like his Pixiv and Twitter, his premium art is all over the place, with some sets only available on Fanbox and some only on Patreon (not sure about Fantia). Be warned that his Fanbox (which is supposed to be more complete) has quite crude censorship.