Yoshi is a good guy and he did not deserve to get cheated.
I think it was a bad decision from the developer to let Natsuki cheat on him.
The roleplay between the couple was great.
Natsuki should have sex with Kendo in front of Yoshi to cuck him the right way instead.
The best and promising couple in this game was ruined.
The game became a mindless fuckfest, thats's why I left it a while ago.
I agree, I think that the creator of the game bets more on provocation to the player in the planning of the characters, which I totally approve, but certain provocations also generate nonsense, for example, Natsuki telling Yoshi that she loves him and deceiving him as usual and Yoshi accepts it, it can be fun as a provocation but to believe? Anyone who has fallen in love does not act like Natsuki, no matter how much the game creator tries to make the arguments so that Natsuki can cheat, Kendo can conquer and Yoshi accept the situation, there are natural things like being in love that most have experienced and read the dialogues do not find that the justifications make sense.
For me Natsuki does not love or is in love with Yoshi, it is more like the relationship of two friends instead of the couple in love at the beginning of the game and the only reason why they do not break up is for not make Kendo look bad as a character, because could be there an option to separate Natsuki and Yoshi.
It is intelligent for the creator of the game to see that situation where even Mary can left as a bad character, which has happened in other games where provoking has ended up destroying characters and creating many fights in the forum.
The game is going very well, the creator knows how to protect the characters, even if he has to sacrifice others.