Manga Spirit Blade Mountain

A comet falling will bring about a great calamity, and in order to choose a child fated by the falling comet, the family of the "Reiken" clan with a long storied history is once again resuming its entrance examination process to find disciples. The protagonist Ōriku (Lu Wang in the original novel), who possesses a special soul that only appears once in a thousand years, decides to take the exam, and he starts down the path toward becoming an exceptional sage.