Sometime long ago, a giant hole formed in the Earth. Dubbed The Abyss, this massive pit seemed to go on forever with dangerous beings and environments within its depths. Explorers who would be called Divers decided to venture into The Abyss to discover the secrets within but only a select few are deemed worthy or strong enough to handle the horrors from inside The Abyss. Riko, a young Diver in training, alongside her friends hope to prove they can become the coveted White Whistles—those who survive the depths of The Abyss—and continue to explore and train themselves alongside their mentors. However, when Riko discovers a young robotic human—who Riko names Reg—her life will change as she finds it possible to now dive into the further levels of The Abyss like her famous White Whistle mother, Lyza. Can Riko and Reg survive and prove themselves to be White Whistle material or will The Abyss and its countless threats devour not only their bodies but their minds as well?

Young Touya has just faced the worst possible life event, his own death. Despite being a teenager, Touya has died and his life is now over. However, Touya awakens in an unfamiliar place in front of a man who calls himself God. Apparently God accidentally killed Touya with some lightning and feels it’s only right to reincarnate him in a new world. Giving him not only his life back but a new place to explore, God then asks Touya to allow him to grant any one wish he has. For Touya this wish is that he wants to bring his smartphone with him. God grants him this request and even powers up Touya and his phone to ensure his life in this new fantasy world is one of excitement. What adventures await for Touya now that he’s been thrust into a fantasy world? Find out in Isekai wa Smartphone to Tomo ni!