Takumi's reborn in a new world and finds super-strong twins, Alan and Elena. As their guardian, he joins an adventurers' guild to provide for them.

After a god accidentally slays him, Takumi's reborn with new skills in a monster-filled forest where he stumbles upon twins. They're sweet, adorable, and super strong. Won over instantly, he names them Alan and Elena, becomes their guardian, and joins an adventurers' guild to provide for his new family. And so starts his chill life of adventure, watching over Alan and Elena's growth.—Crunchyroll

Because of a mistake that God made, Takumi Kayano lost his life and was reincarnated. After being endowed with a variety of abilities, he was transported to a different planet and dropped into a perilous forest rife with monsters. Takumi finds a young child and girl in the forest who look to be twins. He names them Alan and Elena and takes them under his protection. Astonished by the ease with which the two vanquish monsters with their martial arts prowess, Takumi arrives in town and joins the adventurer's guild in order to support himself. He thus takes care of Alan and Elena as they grow up and begin a carefree life filled with adventures.—Bilibili TV

Due to a God's mistake, Takumi Kayano lost his life and was reincarnated. He received various skills and was sent to another world, where he found himself in the middle of a dangerous forest teeming with monsters.In that forest, Takumi found a boy and a girl who appeared to be twins. He named them Alan and Elena and took them into his custody. Despite being shocked at how easily the twins beat the monsters with their fighting skills, Takumi made it to town and to make a living he registered to the adventurer's guild.Now his life of leisurely living as an adventurer while looking after Alan and Elena growing up had just begun.—Muse Asia