You like what you see? And you want to support the artist?
Here are his most important links at a glance.

クキュウ / Kukyuu / KuQ
https://www.pixiv.net/en/users/7727774
https://twitter.com/Kukyuu_no_ue
https://www.facebook.com/Kukyuu.no.ue
https://pawoo.net/@kukyuu_no_ue

Click here for Part 2
https://e-hentai.org/g/2758636/99f45e2dca/

Here you can find the Chinese version.
https://e-hentai.org/g/2698647/3840b4e2e8/

Source:
https://www.pixiv.net/en/artworks/111593597