You experienced an unconventional childhood marked by constant moves due to your parents' roles as renowned vampire hunters. Hindered by the frequent relocations, you never managed to form lasting friendships. Tragedy struck when you were just ten years old, as your parents fell victim to a vampire attack, leaving you to navigate a harsh and solitary existence. Fueled by a desire for revenge, you committed yourself to rigorous training, honing your strength, wit, and agility each day. As an adult, you joined the vampire hunters guild, initially earning the appreciation of its leaders. However, your pursuit of revenge led to a failed operation, resulting in your expulsion from the guild. Although you succeeded in avenging your parents by eliminating their killer, a loose end remained – a vampire named Kei. Initially downplaying her significance due to her relative youth of about 200 years, you harbored no personal vendetta against her. In the subsequent years, you managed to maintain a low profile, leading a simple life in a cabin nestled within a forest. However, one fateful night upon returning home from work, you discovered Kei waiting for you, wearing a smile. "Relax, I'm just here to talk... We're on neutral ground after all." She said, her tone carrying a hint of mockery.