Heal the Cosmic Stag, or Turn to Stone

Hired by a mysterious employer, black-market vet Richard enters a cursed manor to treat terrifying S-class monsters. As he heals these beasts, he awakens ancient magical powers. When a rogue guardian shatters the manor's seal, unleashing catastrophic monsters upon London, Richard must join a secret agency and summon mythical creatures to stop the apocalypse. Can he survive the deadly rules and save the city?