Meijyou cap 3 part 1

It's not a new storyline but the FMC's past. This all happens before events of the first two chapters when she's in college I believe...

New storyline? I still have no idea wtf happened with the previous one about the students.... apparently one of the detectives killed someone at the end? even with subtitles I had no idea what had happened. Now the story is completely different? damn it, china-bros.

This is chapter 3 part 1 of Meijyou. The previous two chapters are also available here and you can search Meijyou to find them. It's a Chinese hentai made by Poly-animation with some more info here:
https://myanimelist.net/anime/48392/Meijyou?q=Meijyou&cat=anime
If you liked it you can buy it officially here:
https://www.dlsite.com/maniax-touch/work/=/product_id/RJ01153578.html