In dxd with useless Longious

Every fanfic main character dies in accident and reborn with cheat ability or system in new world but James wasn't so luckily as he regained his past life memories one year before the canon start but didn't get any cheat ability remaining normal person even though the plot begin.
After seeing Issei have pain in his hand James finally realize the plot passed the first season and Rias already fell in love with issei when he was about to accept his fate of becoming a mob in dxd world, he finally wakens his new power Longious innovate clear!
Watch his adventure to become the strongest existence and building huge harem in dxd world.

note this fanfic is gonna to have R-18 scene so be warned.
this novel is gonna to have big harem.

English isn't my first language so the grammar isn't gonna to be perfect even though I use Grammarly.

for those who don't like this fanfic please don't write options because I lower my motivation for nothing.

I don't own the anime , character, pictures.