Naruto Kabuto Yakushi's Self-Cultivation

Not brainless + no harem + not systematic. If you don't like it, don't come in. Lin Sen, who was originally a mediocre clerk, traveled to the world of Naruto due to an accident at work and possessed Kabuto Yakushi. So as a reincarnation, can he restart Kabuto Yakushi's path to immortality? How will it change the direction of the original plot? Just listen to what I have to say. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.