@omegaxis1
Cursed 2nd princess (Axiel was it?) is also a war hero and has a man of very high standing for fiancee. That is plenty of ammunition to make a challenge for the throne.
Oh YES IT IS!
Protagonist is a bad boy with balls, who If that is too bad for you (it is for some commentators here), steer away from here and read Redo of Healer or How to build a dungeon: Book of the demon king instead.
Finally, a manga protagonist who has some balls. Good to see Japanese can write it too and not just Americans alone. This is starting to look more like John Blake Chronicles & Three Square Meals :)
Basically this is a story of shipwerecked castaway in a fantasy world. So even though he didn't get summoned by mage or sent by god like in standard isekai, it should still qualify as one.
@Shahdan
Google for "Upon a savage shore". Web/Kindle novel, NOT Japanese, but it has badass space marine and cat girls adventuring in a primitive world.
@Rayen33
I read the first chapter of it. Yandere girl going berserk with huge knives from hammer space... Oh gawd! No such shit in Yonakano Reiji ni Harem wo!!
@Peenemunde
There is negotiation! Already in chapter #3:
https://mangadex.org/chapter/518759/9
How could you overlook that? And there are more diplomatic game & negotiations in chapter #18. Japan's diplomats get stonewalled hard.
What is marriage age in Japan again? If it's 16 as I have seen mentioned in some manga & anime, they should just get married and tell that to the next policeman.
Congratulations, @natyoufri . I recommend you to get Divci Valka, la guerre des pucelles in there too.
We in Finland get very few translations. Perkele :(