After dying due to God's mistake, Touya is reborn in another world?! There he meets the twin sisters, Elze and Linze, and starts his new life in another world along with the smartphone he got God to let him use in the new world. Thanks to God's power Touya's a new person with increased abilities and a new talent for magic, so he uses his super convenient smartphone to help defeat beasts, create ice cream in the new world, and start enjoying his newfound life. What will happen to Touya's life as time goes on?!

While surprised by the differences from his previous world, Touya is growing accustomed to living in the new world with his smartphone. Together, he, Elze, and Linze accept a mission to head to the Royal Capital. Along the way they encounter a young samurai, Yae, who dropped all of her travel coins, a currency in the new world. After treating Yae to sate her hunger, Touya grows worried about his own savings due to how much she eats. Afterward Yae joins their party to repay the favor, and their traveling group encounters Sushie, heiress to a duchy, under attack.

Touya and the others head to ruins on a new quest from the Guild to defeat a dullahan. There they encounter the ancient royal capital, abandoned after the capital was moved a millennium ago. After finishing their quest, Touya and the others explore the underground ruins for treasure. Yet what they find isn't a mountain of treasure, but a magic beast made of crystal! No attacks work on its hard body, it absorbs magic, and it even regenerates from wounds. Touya and the rest struggle against such a powerful creature... What on earth is the true identity of such a magic creature?!

Touya is brought to the royal palace by the Duke. There he finds the King, bedridden, on the verge of death after being poisoned by someone... No one knows how to treat it, and many believe there's no hope of saving him. Yet high-spec Touya handles the poison with ease! He saves the King with his super Healing magic, Recovery, and even catches the criminal who poisoned the King quickly, bringing everything to resolution. Meanwhile, after watching Touya's actions, Princess Yumina makes a startling declaration...

Touya and the others set out to investigate some magic beasts, but it turns out their destination is the castle of a mage who researched slimes, which they'd all been avoiding (though Touya seems excited?) Touya and the others advance to carry out their investigation, but Green Slimes capable of dissolving clothes stand in their way! They climb the staircases to run away from the slimes chasing them, but in their path are Lotion Slimes! The way forward is wet and slick! The way back is slimy and smooth! What was the goal of the research behind this slick and slimy and slime panic?!

After receiving a huge mansion in place of court rank, Touya and the others begin living their usual dense, thickheaded lifestyle. Then Duke Ortlinde's daughter Sushie joins them. They receive a mission to head all the way to Mismede because she'd like to use Touya's Gate spell for talks with The Kingdom of Mismede. Mismede's ambassador, Olga, her daughter Arma, and their two guards join their traveling group. On their journey they encounter a dragon attacking a village on what should normally be sacred ground! It's Touya vs another world's orthodox dragon! Which party will win...?!