It's got an anime, for the main story... just, don't google it without safesearch on... so many cucked artists man.
Ahem anyway, google "takagi-san" should get you the anime, and wiki page, I believe it's in the title, so imma check mangadex rn, brb.
Okay so it's "Teasing Master Takagi-san" (for some reason mangadex says skilled instead), or " Karakai Jouzu no Takagi-san".
Here:
https://mangadex.org/title/6e445564-d9a8-4862-bff1-f4d6be6dba2c/karakai-jouzu-no-takagi-san
"Karakai Jouzu no (Moto) Takagi-san" is the sequel where they're grown up. english: "Teasing Master (Former) Takagi-san"
Obviously contains spoilers, so don't check it out if you don't want to be spoiled.
And then finally, you get the current one: "Karakai Jouzu (?) no Nishikata-san" which is "Teasing Master (?) Nishikata-san" Again, spoilers for the first series.
As for anime, I thought the sequel story had one, but was wrong (originally said so as well).
1st has 177 chapters, sequel has 314, and threequel has 9 translated ones.
But yeah start here:
https://mangadex.org/title/6e445564-d9a8-4862-bff1-f4d6be6dba2c/karakai-jouzu-no-takagi-san
Then you can do these two (in order):
https://mangadex.org/title/ddcebfa2-05a0-4fcd-9cd4-60d779c38f2c/karakai-jouzu-notakagi-san
https://mangadex.org/title/3673409f-7e00-40b2-a762-88baa497c8a6/karakai-jouzuno-nishikata-san
