Seiro

The gods of the celestial plane, as well as creating "people", also created mysterious structures known as "dungeons". Forests, Caves, Towers and Labyrinths... They come in all shapes and sizes throughout the world, full of countless monsters. On a rainy day, Koto, the lone adventurer, ends up meeting Milly, an adventurer who was expelled by her old team. He intended to ignore her after giving her a potion, but she ends up getting attached to him.

Forty years have passed since his reincarnation, and the guild leader, Girold, has been working diligently. Looking back on his life, he realizes that he hasn't been able to get married, so he tries his best to get a girlfriend, but there is no luck. He thinks he's not popular, but the girls around him are trying to approach him... (DeepL)