Wolford Shin

Shin Wolford is the main character of [i]Kenja no Mago[/i]. After dying of an unknown cause, he reincarnated into an unknown world carrying with him a vague memory of his previous life in his previous world. Shin tends to approach his new world of magic through a lens of his old world of science. [spoiler]He later becomes the fiancé of Sicily.[/spoiler] (Source: Kenja no Mago Wiki)