Choose either one to take up the challenge please it would help if me and the fan fiction community if you do

if Issei after the rating games against Riser found out about his heritage and as Goku's great great great grand child. What if said ancestor is in Issei's sacred gear along with Draig to help Issei with his new awoken abilities.

2. Issei's parents find Issei in a crashed saiyan space ship when he was a baby, bumped his head to forget his memories, and his martial arts teacher is Goku.

3. Issei dies from Samuel's curse, travels back in time, and is reborn as a saiyan. This time comes back stronger in the canon of highschool dxd to kick some ass