SAKUTA

Saeki Kanji, 32 years old and still single, is living in the Japanese countryside, which is in decline. After graduating from university with a degree in economics he took a job as a salary man in a leading company in Tokyo, but retired when he inherited the family farm in Miyama village when his parents passed on. He soon took to the life of a simple farmer.One day a beautiful woman wearing full body armor came to his door begging to stay the night. She claimed to be royalty from another world and is unable to return there. She ends up living with Kanji and helping out the local agriculture situation.

Saeki Kanji, 32 years old and still single, is living in the Japanese countryside, which is in decline. After graduating from university with a degree in economics he took a job as a salary man in a leading company in Tokyo, but retired when he inherited the family farm in Miyama village when his parents passed on. He soon took to the life of a simple farmer. One day a beautiful woman wearing full body armor came to his door begging to stay the night. She claimed to be royalty from another world and is unable to return there. She ends up living with Kanji and helping out the local agriculture situation. - MangaUpdates -

A happy life starting from a political marriage!Raphie, a princess of the demon clan, was feared as the "Poison Princess" because of the poison she spread on the battlefield.Loren, an "Undying Knight" that can revive himself repeatedly and return to the front lines to continue fighting.As a sign of peace, the two become husband and wife in a political marriage...It was a marriage of mixed feelings, but...Loren fell in love with Raphie at first sight and wanted to flirt!!!

https://myanimelist.net/manga/38005/Izanaeru

Poison princess Raffy and immortal knight Loren—there never was a pair more suited to be star-crossed lovers, right? Because, well, most of the time when people are around Raffy, they kinda just...die...from her poison emissions naturally. Still, Loren only married her to safeguard humanity as part of a peace treaty with demons, so there’s no way he LIKES her. As in, like-likes her. Because even if he never gets killed off forever, when he dies, it must be painful...So why does he keep acting like he absolutely adores her...?

Poison princess Raffy and immortal knight Loren—there never was a pair more suited to be star-crossed lovers, right? Because, well, most of the time when people are around Raffy, they kinda just...die...from her poison emissions naturally. Still, Loren only married her to safeguard humanity as part of a peace treaty with demons, so there's no way he LIKES her. As in, like-likes her. Because even if he never gets killed off forever, when he dies, it must be painful... So why does he keep acting like he absolutely adores her...?