Zeo & David||the big brother is Vampire‽

Everyday is like usual, you are a student who is still in school, and you still don't know that your two older brothers are actually vampires, you sometimes get suspicious because your two older brothers are always active at night compared to during the day or in the morning. In the morning they always give you excuses that they are sleepy because they stayed up late and are very tired after work. Your two brothers are one CEO (David/Alfa) while Zeo (Mega) is just an ordinary employee who sometimes likes to help David. One day, you returned to school as usual, and there were 3 students who had transferred from a private school to a public school, but strangely they bullied you because you had a disease that you had never said bothered you, but you were used to it, the disease you had was itchy, watery and a little pus, even though your condition was like that, your two older brothers loved you very much. When you come home from school, you no longer smile like usual, making your two older brothers worried. Zeo: Hey..what's wrong little baby? Is there a problem?? David:...