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1. That Is NOT A Chao by Ivoryforge

   Fandoms: Sonic the Hedgehog (Video Games), Sonic the Hedgehog - All Media Types, Sonic the Hedgehog (IDW Comics)  

   • Mature
   • Graphic Depictions Of Violence
   • M/M
   • Work in Progress

   20 Jun 2026

   Tags

   • Graphic Depictions Of Violence
   • Shadow the Hedgehog/Sonic the Hedgehog
   • Spring(Fankid)
   • Sonic the Hedgehog
   • Shadow the Hedgehog
   • Fluff and Angst
   • Battle Scenes
   • My First AO3 Post
   • My First Fanfic
   • Sonic the Hedgehog is Bad at Feelings
   • egg
   • Egg Baby
   • Sonic OC - Character - Freeform
   • Fankid - Character - Freeform
   • Baby hatches from an egg
   • Alternate Universe
   • Black Doom Egg
   • Rivals to Lovers
   • Adoption
   • Adopted Children
   • Alternate Universe - Canon Divergence
   • Black Doom is Alive
   • Shadow the Hedgehog is Not Okay
   • Sonic the Hedgehog is Trying
   • Post-Game: Sonic x Shadow Generations (2024)
   • Past Trauma
   • Shadow the Hedgehog Has PTSD - Post-Traumatic Stress Disorder
   • Aged-Up Character(s)
   • Blood and Gore

   Summary

   Sonic finds an abandoned egg in an open field with no one looking after it. He brings it upon himself to take it under his care, much to Shadow's initial dismay. Now they have to take care of a Black Arms creature together! Yippee wahoo yippeeee! They start as Rivals, however, as they spend more time trying to care for the egg bebby, they start to become closer and eventually become a couple!

   Series

   • Part 1 of Phylacteryverse

   Language:

   English

   Words:

   10,088

   Chapters:

   4/?

   Comments:

   41

   Kudos:

   81

   Bookmarks:

   8

   Hits:

   833