Demon Slayer Isekai AU EP45: Dragon Festival Arc Pt3, An awkward Confrontation (Giyu vs Zirconis)

The dragons from the west continent were attacking Montes Secreta while catching the demon slayers off guard. The leading dragons, first the original Acnolog

Demon Slayer Isekai AU EP49: Dragon Festival Arc Pt7, The Secret Call (Ft. Acnologia, Sonya, Erza)

Demon Slayer Isekai AU EP5: An awkward first meeting (Fanmade Ship: Takashi Kocho X Aki Toyota)

Demon Slayer: Kimetsu no Yaiba Swordsmith Village Arc (English Dub)

Holy Shadow Dragon Slayer Magic (Denryuko), Fairy Tail Fanon Wiki

Demon Slayer: Swordsmith Village Arc Episode 6 - The Tragic Genya and Sanemi Backstory - Anime Corner

Goblin Slayer II – 08 – A Pre-Wedding Errand – RABUJOI – An Anime Blog

Demon Slayer: Swordsmith Village Arc Episode 6 - The Tragic Genya and Sanemi Backstory - Anime Corner

Demon Slayer: Kimetsu no Yaiba Swordsmith Village Arc (English Dub)

Demon Slayer Isekai AU EP43: Dragon Festival Arc Pt1, The Negotiation (Ft. Acnologia backstory)

Yu-Gi-Oh! ARC-V - Episode 130, Yu-Gi-Oh! Wiki

Demon Slayer: Swordsmith Village Arc Episode 6 - The Tragic Genya and Sanemi Backstory - Anime Corner

The Record of Unusual Creatures - MangaDex