Itsuki Kuro — https://kur0r0.fanbox.cc
Also known as Kurocan
- Hartmann2.5 XXX on a Rainy Day Strike Witches Doujin released Dec 30 '13 Erica x Gertrud Lots of sex NSFW Reversal Watersports Yuri
- Hartmann 3 Bride Contest! Strike Witches Doujin released Feb 1 '14 Comedy Erica x Gertrud Marriage Yuri
- I LOVE Hartmann! Strike Witches Doujin released Aug 15 '15 Comedy Ecchi Erica x Everyone Erica x Gertrud Erica x Krupinski Erica x Marseille Yuri
- Hartmann 4 - Erica's Shocking Pregnancy! Strike Witches Doujin released Aug 15 '15 Comedy Erica x Gertrud Erica x Marseille Yuri
- This Is for Composing Music...! Love Live! Nijigasaki Academy School Idol Club Doujin released Apr 16 '23 Ayumu x Yu Yuri