Campione! (2012)

S1E1 The First Story

Title: The First Tale Plot: Kusanagi Godou receives a mystical stone grimoire from his grandfather, tasked with returning it to its previous owner, a long-time friend in Italy. Upon his arrival, he becomes embroiled in extraordinary events and crosses paths with the stunning knight, Erica Blandelli. This encounter thrusts him into a conflict against rogue deities, where he harnesses the grimoire's power to vanquish Verethragna, the Persian god of victory. In the process, he acquires divine abilities, earning the title of god slayer, or Campione.