In Another World With My Smartphone (Original Japanese Version)

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.

While surprised by the differences from his previous world, Touya is growing accustomed to living in the new world. Together, he, Elze, and Linze accept a mission to head to the Royal Capital. Along the way they encounter a young samurai, Yae.

Touya and the others journey to the ancient royal capital to defeat a dullahan. After finishing their quest, Touya and the others explore the underground ruins for treasure, but instead they find a magic beast made of crystal!

Touya is brought to the royal palace by the Duke. There he finds the King, bedridden, on the verge of death after having been poisoned!

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?)

After receiving a huge mansion in place of court rank, Touya and the others begin living their usual dense, thickheaded lifestyle. They receive a mission to go to Mismede, but on their journey they encounter a dragon attacking a village!

Touya's party heads out for Mismede once more. When they finally arrive in Mismede's royal capital, Berge, they head to the palace for an audience with King Jamukha. Then somehow Touya and the King end up doing battle in their fighting arena?!

After returning from the Kingdom of Mismede, Touya and the others enjoy their daily life. At Sushie's request they head back to Mismede where they find Leen and Paula. Leen asks Touya and the others to investigate some ancient ruins.

Touya arrives in Oedo, a Japanese-style castle town within Tokugawa Ieyahsu's domain. At Yae's home he meets their servant, Ayane, and Yae's mother, Nanae, before hearing that Yae's father and brother went off to war with Ieyahsu.

After arriving at the beach where the Nilya Ruins lie, Touya and the others take a moment to enjoy the seaside. With so many beautiful girls in swimsuits, Touya's heart is racing!

After Touya arrives at the aerial garden, he's greeted by a young girl in white panties, Francesca. She's the keeper of the garden.

When Touya returns to the mansion, the problem of taking his brides awaits. Yumina and Linze (mostly Yumina) push and push until Touya accepts his engagements. Even Elze and Yae get to join in the polygyny! Hey, are you okay with this, protagonist?!