I recommend "Naruto: The Strongest Yin Escape" and "Rebirth in the Second Dimension". These two books were novels in which the male protagonist transmigrated to the world of death. The male protagonist of Naruto: The Strongest Yin Escape was a resident of the Uchiha clan. He had a wealth of 2D knowledge and the power of Yin Escape. He could create all kinds of 2D equipment and characters. After the male protagonist of "Rebirth in the 2D World" completed his revenge, he transmigrated to the 2D world at the time of his death and traveled through various 2D worlds. I hope you like this fairy's recommendation. Muah ~😗