Some school in JP doesn't allow you to have romantic relationship. If you've got found out, your parents are going to be called out which means you're creating a "nonexistent" problem for them + gonna make you into a kid that causes problem in school and also "openly having sex" can turn you into a gossip target which could incite bullying.

There's a lot of reasons why this kind of settings work in JP /Asia, but would be batshit insane to merican or euroboi

Base +7, sirskyrider +8, MoonCheese +7, absolugom +7, viseurahh +6, CaptainFlint +5

Raw [Digital]: http://e-hentai.fbk.tokyo/index/g/1553811/bc25c456ce/
Raw [C97]:http://e-hentai.fbk.tokyo/index/g/1558675/f51b11c1c7/
Chinese TR: http://e-hentai.fbk.tokyo/index/g/1558292/177123853d/
Korean TR: http://e-hentai.fbk.tokyo/index/g/1585793/839b75bf31/

Thanks, nice little story. This is how a good open relationship works!

Base +47

NTR with the usual half-assed blackmail plot and "his dick bigger and better than my BF" ? I sleep
NTR with cutesy artstyle that usually used in vanilla lovey-dovey story ? REAL SHIT

Base +33, Rouge･ -30, absolugom +7, as102 +11, EdwardxD +6, Danman -8

generic NTR plot with cute artstyle somehow gives the genre a fresh take

Base +9, absolugom +7, as102 +11, EdwardxD +6

Plus it is the kouhai doing the stealing. In schools scenarios like this one, you usually see teachers and gyaru-oh senpais being the stealers, so it is another cool uncommon element

Base +6, absolugom +7

We can safely assume that there is no rule in the school against dating due to the boyfriend suggesting in the beginning of the story that they should make their relationship public. So the blackmail is kind of silly. Yes, I know it's hentai, but in my humble opinion, this is a bit too dumb

Base +7, absolugom +7