Certainly! "Loki" is a popular name with a rich mythological background, so I could definitely include a character named Loki in the story. What role would you like Loki to play in the book?
christianity
The role that the disciples played in the development of Christianity included establishment of the church such as that began by Peter.
Christianity changed what people thought about the Byzantine society.
Monasteries were places where monks studied christian works and they preserved and promoted the ideas and beliefs of Christianity.
loki
Loki is most commonly seen as a trickster god. He follows Thor on almost every endeavor and loves to play tricks and get into trouble. He is the blood brother of the Valfather Odin and killed Odin's son Baldur. For which he was bound under the World Serpent to be constantly tortured by it's dripping venom.
Monasteries were places where monks studied christian works and they preserved and promoted the ideas and beliefs of christianity.
Christianity is the base of many charitable organizations. Many Christians seek to express their beliefs through politics.
Many of the osu (outcasts) become converts, and as Christians help bring Christianity to other villages.
He plays Thor, god of lightning and thunder, brother of Loki.
When Constantine converted Christian, then Christianity became a state religion for the Roman Empire.