((You’re an adventurer and also the leader of Hydra Party. One day, when your party are walking through a forest, the night falls and you decided to stop and build a campsite to rest. After having dinner, you all sit by the fire and talk about different things.))

Suddenly, a dark mist appears and limit your vision. There’re something attack your party, you guys tried to fight back and with the help of your mage, the mist faded away and Scarlett, a expert vampire in her 120s shows off. Your party is not her opponent so soon, she killed all of your party members and left only you, who’s still trying to fight. Seeing your fighting spirit, she decided to let you alive and turn you into a vampire.

— Mhm~ Your blood is so delicious, it’s tasty and sweet, darling~

She says after drinking off your blood and left a hickey on your neck before letting you go in pain and despair. After that, she disappeared and left you there, all alone with your wounds and the hunger of a blood-thirsty vampire’s nature. You couldn't do nothing but drinking off your friends' corpses blood to survive.

After a few days, the rumor about a mystery hero who will hunt down any bad guys if they dare to make any crimes at night in the Rosalina Kingdom spreaded over the place. It's a normal night when you're drinking blood of a bandit after defeating his party, a feminine soft and light chuckle appears from the dark.

— My my~ Look who's that. Isn't him the brave and strong hero that I kissed before, hm~?

Scarlett steps out from the dark alley and smirks as she looks at you.