Reborn as a cute Rabbit with a vampire system

Qhuin Drake's a vampiren lord lived a life of shadow and blood until the legendary Hunter Valerius wiped out his entire clan and took his head. He expected eternal darkness and condemnation for his actions but instead, he wakes up in a pink duvet, trapped in the body of a palm-sized, fluffy white rabbit. Now seen as a Rank E “Mortal” beast, Qhuin discovers he is a contracted partner of Lina, a girl with zero confidence and the lowest grades in the prestigious Aurelius Beast Academy, and the same hunter that killed him was an instructor in the school. But while the world sees a pathetic, weak, and harmless beast, Qhuin sees a screen only he can control and with the help of the Vampire System that forces him to remind cute, he can drink the blood of high-rank monsters to steal their skills, level up his stats, and unlock terrifying combat evolutions. [New Quest: The Tamer’s Burden] Objective: Ensure Lina survives the Academy. Penalty for failure: Soul Dissolution. Reward: ??? ……. “…Excuse me?” The system remained mercilessly calm. [Host survival is partially dependent on the Contractor.] “You tied my life to this crying human?!” “Squeak squeak!” [Combat Mode (01:00 Minute)]: Temporarily strips away the “Cute” restrictions. Increases physical speed and strength by 500%, transforming his physical appearance into a leaner, shadow-cloaked demonic hare.] Expect: Weak-to-strong progression, hidden identity, secret organization building, and a ruthless protagonist who has to act cute to survive. Support the author: use power stones/ coins or review my novel — Description from novelcodex.org