Indiana Jones and the mystical grimoire (Male reader x helluva boss)

Y/n Walton Jones Jr. the 3rd is the son of the legendary archeology professor, Indiana Jones. Y/n started learning archeology at 4 years old and grew up with archeology, Henry Jones is a loving father to y/n. But when y/n was 18, Henry suddenly disappeared without a trace. Y/n puts on his father's adventure clothes with his iconic hat and whip, but when y/n searched his father's office. There was a picture of the most powerful artifact of all time... the mystical grimoire that belongs to a royal class demon. Y/n made some unlikely allies with the I.M.P. when he fell into hell, but one thing is for certain. This is going to be the most dangerous, exciting, treacherous journey of his life.