Isekai wa Smartphone to Tomo ni.  

Em Outro Mundo Com Meu Smartphone, In Another World with My Smartphone, isesuma, 이세계는 스마트폰과 함께, 異世界はスマートフォンとともに., In a Different World with a Smartphone., 異世界はスマートフォンとともに。

In a careless mistake, God mistakenly strikes down Touya Mochizuki with a stray lightning bolt! As an act of contrition, God grants him one wish and the opportunity to live again in a fantastical realm. Grateful for the chance, Touya requests only to bring his smartphone with him as he embarks on this journey into the unknown. In this new world, Touya is surrounded by magic-something he has always been drawn to-and adorable females who are all vying for his attention. These ladies-the twins Linze and Elze Silhoueska, Yumina Urnea Belfast, Leen, and Yae Kokonoe-present Touya with endless romantic dilemmas but also offer him valuable companionship as he uncovers the mysteries of this new land.