Fate/Tower of God - Climbing the Tower with Mordred's powers (fanfic)

With the Servant Card of [Mordred Pendragon] and with Mordred's spirit inside his Ignition Weapon [Clarent], a reader enters the Tower. The Tower. It is said that anything could be found at the top. That any wish could become true if you can reach the top floor. No one had yet reached the top, though. After hearing about the Tower of God, Mordred's goal became to climb the Tower in order to fulfill her wish. As for the reader, Orion, he is the vessel of Mordred's Heroic Spirit powers and her partner in crime that promised to make it happen. The two made a contract to climb the Tower together to reach the peak! ... It's a story that I'm casually writing on the side after being inspired. I wonder what the response and popularity would be like. I also like the fact that the MC's powers here are quite straightforward, and it makes things easy to write.