My Guardian Vampire

Rose looks like an ordinary high school sweetheart but she has a secret. She has a mysterious guardian that has been looking after her since childhood. she never knew why he was looking after her or why he will show up. All she knows is that no matter what happens at the end of the day she will go home safely. She has painstakingly tried to find the identity of this mystery man every time she visits her grandfather because it is the only time she can fully invest in tracking him but to no avail. This time she is moving to her grandfather's town permanently. She has vowed to spent every free moment to find him and he mysterious shows up in her life. What happens after meeting him leaves her speechless.