After Lucifer fell to heaven, a holy war broke out between gods and demons. The Blood Realm under Cain's control has not taken a stand, and his addition will completely change the situation of the war. Cain signed an agreement with Raphael, the representative of the divine world, promising not to interfere, and as a condition Raphael would become Cain's lover.
Note:
Dracula Cain: One of the two sons born to Adam and his wife Eve, Cain later killed his brother Abel out of jealousy and was later punished by God and became a vampire.
"The LORD said to him, "Whoever kills Cain will be repaid sevenfold." The LORD put a sign on Cain so that no one who found him would kill him. So Cain left the presence of the Lord and went to live in the land of Nod, east of Eden. ——"Old Testament-Chronicles"
Raphael: The radiant messenger who performs healing techniques. The ruling angel of the second day, guardian of the Tree of Life in Eden, one of the seven angels who always stand before the throne of God.
Conception: