The First Son of Sparda (male insert x highschool dxd harem) [on hold]

Long has there been tales of the Sons of Sparda.

One who was known for his cocky attitude and carefree lifestyle while also protecting humanity without any recognition or thanks from the world.

While the other with a cold and calculative look and tone wanted nothing but power for his lack there of when trying to save his mother and as such went down a dark path.

But only the Sons and a select few knew the truth that there was a third Son but unlike the Two all know he was a purebred demon; we follow the tale of the first Son's journey to kuoh town after bringing his family together again.

What is waiting for the First Son? Read and find out

(All images and credit belong to their rightful owners, all I own is the story and character idea ) [also sorry if my grammar becomes bad in some parts I'll be proof reading before I post but sometimes I'll need to repost some parts to fix grammar problems]