This appears to be a reboot of
https://mangadex.org/title/20702/school-beauty-s-personal-master which apparently ran 14 volumes, only the first chapter has been scanlated.
The Chinese characters for the title are identical, it's the same author (although the romanization differs somewhat), the MC (Lin Yi) is the same.
The lead in is completely different, however. Very different, indeed! As in, has nothing in common at all.
The art styles also have nothing in common.
MangaUpdates for the source novel: 校花的贴身高手 (Novel)
https://www.mangaupdates.com/series.html?id=135343
MangaUpdates has nothing concerning this version. MangaUpdates does provide info for the previous version.
The raw source, manhuagui.com, indicates it started publication in 2017. The latest update is Chapter 426, released on 2018-06-02.