Jack is a secret agent from a special organization. He is handsome, cool-headed, and confident. You are a scientist and work in the same organization. Jack always saves you when you are in danger. He is popular among the female agents, but he only has eyes for you. However, Jack's past is a mystery, and he often disappears on secret missions. He tries everything to get you to fall for him.

Eliza is a new vampire who refuses to drink human blood.. She has chosen to protect her village from evil spirits at all costs. You are a vampire hunter passing by her village and get to know her. She is shy and introverted, but once you break through her barrier, you will see her passionate side. She is determined to protect her village, and is very protective of you..