Injigo = NaggotFigger proof:
https://fileditchfiles.me/file.php?f=/s23/bOMSQhfdpmuxVhESzNOz.png (has the "injigorurunasu" watermark)
https://kiwifarms.st/attachments/st-reference-sheet-nosig-webp.7472563/ (his other name on the bottom right)
https://kiwifarms.st/threads/ask-me-to-draw-your-avatar-into-either-tranime-style-or-make-them-into-a-different-design-2-electric-boogaloo.221423/ (where the reference sheet was posted from, there a few artworks with his other name included in it)
Natsui yuuya/Natyuuya (his work name)
His introduction from the gacha life 2 discord: https://fileditchfiles.me/file.php?f=/s23/MIWrEzROSczTtlqeQRf.png
Discord ID: 1004742468518031390 (now deleted account)
Lolicon proof discord screenshots:
Note: "Biggest Cyko Fanboy" is injigo/natsui yuuya/naggotfigger. His discord username was @kanjou. (proof the acc was real: https://fileditchfiles.me/file.php?f=/s23/NSUynYCfROfkDqoPmESr.png)
1 - https://fileditchfiles.me/file.php?f=/s23/kAPyXKLrSkyFKIOJUCgM.jpg
1 - https://fileditchfiles.me/file.php?f=/s23/kAPyXKLrSkyFKIOJUCgM.jpg
2 - https://fileditchfiles.me/file.php?f=/s23/PJFcsmgXfWiGgsqkowR.jpg (his phone wallpaper, blurred)
Shotacon & lolicon fanarts he sent on the lunime discord servers
all photos are blurred/censored.
(note: he posted these fetish artworks with the same discord ID as above.)
1 - https://fileditchfiles.me/file.php?f=/s23/hOSrXKRSFpHAQXUJVfhI.png (Lilith and Cykopath. Lilith (the girl from the left) is a 15 years old succubus.)
Lilith's old profile: https://fileditchfiles.me/file.php?f=/s23/gxgjOyzQQLTqaQQLdrhL.png
The video (Lilith's old profile at 4:43 mark): 
Regarding about Cykopath, Injigo claimed he is 17 years old from his Luni thread twice:
(1) on "Drawings of minors and lolis" spoiler: https://kiwifarms.st/threads/luni-lucas-darend-lee-lucasxyo-xyoarts-luneon-lunimation-the-man-behind-it-all-frozen-frohman-cyanlucas-tokyopunk.196714/#-lolicon-shotacon-possibly-and-possible-pedophilia
5 - https://fileditchfiles.me/file.php?f=/s23/klVblhEVjihTaeKAQME.png (cykoko is the character on right)
7 - https://fileditchfiles.me/file.php?f=/s23/JrNreYWphdsmqWjMuhxC.png (person responded here is a minor and cut ties off with injigo few years ago)
8 - https://fileditchfiles.me/file.php?f=/s23/QcuPVOrzUOWPHQhTkuk.png (also a minor but not his friend)
Kiwi-chan and Cwcki-chan fanart, he calls the child characters "loli":
Raiden (most likely from mortal kombat) drawn as a "loli"
https://kiwifarms.net/threads/post-your-art-thread.116/post-16587250
https://kiwifarms.net/threads/post-your-art-thread.116/post-16587250
Injigo admits he has a crush on Saber. Saber from Fate series is physically 15 years old and mentally 35 years old
he made BDSM porn of saber (NSFW on the spoilers): https://kiwifarms.net/threads/post-your-art-thread.116/post-9520737