This is Claude Brady Friedlion's theme, the stage 7 (hidden stage) boss,
"この世界の最果てで ～The Worlds of Luster Guardian" / "At the World's Farthest Ends ~ The Worlds of Luster Guardian".

"創世史、或いは慟哭の黙示録 ~ Incarnation Erased From History" is a furry-themed Touhou-style shoot 'em up game made by Rian, featuring original music tracks composed by 飛岳水脈(Hidaka Suimyak).

---------------------------------------------------------------------------------------------------------------

Hope nobody minds me fixing that bloody typo.

KENTUCKY FRIED LION.

---------------------------------------------------------------------------------------------------------------

Download the game here: https://ozkankinshitai.fc2.net/blog-e...
The official full OST:    • 『創世史、或いは慟哭の黙示録』使用BGM集【IEFH】  

The creator's Twitter:   / rian_ozstoilet  

The composer's Twitter:   / hatarakenaihito  
The composer's YouTube channel:    / @hidaka_sui