The Fake King, Son of Shirou and Morgan ( HighschoolDxD X Male reader )

In an alternate timeline, Shirou did not summon Saber but instead he summoned the berserker class's servant and her real name is Morgan Le Fay

they both somehow hit off and have a Son name
Y/n Le Fay Emiya, he has the looks of his mother and with his father eye color

And he participate in a grail war where he died to destroy the corrupted grail, and he was sent to a different world with his servant