Betrayer Angel, Loyal Demon

After being tortured to death by the angel he trusted and the heir who bought her, Xavier Woods is reborn with a beast system. This time, he trades the S-class angel for a blind F-class succubus everyone despises—because she was the only one who gave her life to save his. Bonding with Lilith, he unlocks her hidden power, earns an SSS rating, and rises from trash to top student.