Takumi Kayano, a young, average Japanese man, was accidently killed by the Wind God Syl. As an apology, Syl imbued Takumi with the knowledge and skills necessary for survival, and had him reincarnated in the fantasy world of Etelldia. While exploring a dangerous forest filled with monsters, Takumi stumbled across a pair of young twins. After giving them names and forming a bond, he decides to raise them as his own as he explores this new world... What sort of adventures await the trio of Takumi, Alan, and Elena?