Sena Sitri

It's a story with horrible grammar.
Sorry, my english is sucks! Like, really sucks!!!
So I'm not recommend this fanfic for someone who not used to read an mtl.
It will make you dizzy.

As for the synopsis, it's a very cliche fanfic story.
A guy reincarnated into a Highschool DXD world as Sena Sitri, Serafall Sitri's older brother.
But his life in DXD world would be autopilot, as his memories would be sealed temporarily, and his every action would be programmed by the guy who reincarnated him.
He died in DXD world, and then "for unknown reason", his soul stranded in the Fate universe and pulled by the Grail "accidentally", and summoned as servant.