Naruto: Blood Mist Escape

A young man from the 21st century accidentally traveled to the Hidden Mist Village in the Land of Water in the Naruto world. Unlike the Konoha Village and the passionate people he knew in the anime of his previous life, the Hidden Mist Village in the Land of Water is filled with fog all year round, and the fog is as red as blood... (The protagonist is both good and evil, and has a process of changing from weak to strong and from good to bad, similar to Orochimaru. The plot roughly refers to the content of the anime up to the invasion of Pain, without fighting aliens, and other optional references.)...