The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together, man named Kururi Helan.
No details of this decline is written inside the game, it can’t be understood why this sub-character ended up with the villainess route. However, that is of no importance.
Living as a needy farmer along with someone is unpleasant, so the main character seeks a profession. For now, he aims for becoming a blacksmith as he originally had skill in it.