This is Zeroshiki's DA Account, though soon to be 'was' as his last post says he'll be deleting his works he posted on there by next year as he hasn't been active on it.

If you want to see his works, here's where he's more active:

https://www.pixiv.net/en/users/887559

https://x.com/ze_ro_shi_ki

You can also support him on his Fanbox:

https://zeroshiki.fanbox.cc/

Update: the announcement was deleted. It seems he changed his mind.