There is a popular saying: "you can never be too careful." It is very important to prepare for every situation you may face, even if it seems like an unnecessary waste of time. Also, in games like RPGs, it is good to exceed the level of your enemies to achieve total victory. These words describe Seiya Ryuuguuin a little too perfectly. After being summoned by the goddess Ristarte to save the world of Gaeabrande from destruction, the hero prepares himself for his noble journey. While this might be normal, he spends a very long time training himself, despite having overpowered stats. He fights weak enemies using his strongest skills and buys excessive amounts of supplies and potions—all to stay safe. While his attitude may be a bit annoying, it might just be the saving grace of Gaeabrande, especially considering that it is a world where the forces of evil dominate each and every expectation. [Written by MAL Rewrite]

Despite being a handyman with a wide range of skills, Saitou is severely undervalued and underpaid. When he complains, his boss fires him, claiming that he is easily replaceable. As if his luck was not bad enough, a truck suddenly hits and kills Saitou on his way home. Surprisingly enough, Saitou does not die; instead, he is transported to another world. There, he meets a party composed of the female knight Raelza, the moonlight fairy Lafanpan, and the mage Morlock, who are all coincidentally looking to recruit a new member with a skill set like Saitou's. Throughout their time together, Saitou uses his expertise to assist his fellow party members and soon comes to receive the recognition he never thought was possible. However, Saitou's presence may just be the catalyst that will connect a diverse cast of people from different places, slowly uncovering the fate that could bring a great change to this world.

Regular high schooler Taichi Nishimura and his childhood friend, Rin Azuma, are on their way to school one ordinary morning. Suddenly, a glowing light envelops them, transporting them to a fantasy world full of magical creatures. Upon their arrival, Taichi and Rin are threatened by a beast. They are promptly saved by a group of adventurers, who advise the pair that traveling unarmed and inexperienced makes them vulnerable to the recently increasing monster attacks. Taichi and Rin are directed to the Guild, where they can determine their magical aptitude and register as adventurers. However, the test they take reveals an unprecedented result: Taichi and Rin possess extraordinary powers that far surpass the standard mage, instantly transforming them from typical high school students to the ultimate cheat magicians. Taichi and Rin learn to grasp the full extent of their powers and familiarize themselves with their new world. However, while the duo seeks to uncover the reason behind their transportation and a possible way back to their original world, unexpected trouble lurks in the shadows. [Written by MAL Rewrite]

After surviving the brutal challenges of Idofront, Riko now possesses a White Whistle, allowing her to descend into the Abyss's sixth layer—The Capital of the Unreturned. Alongside Reg and Nanachi, Riko begins to explore the uncharted domain, where the ruins of the promised Golden City are located. As the trio starts to adapt to the harsh environment, they soon encounter dangerous creatures and treacherous landscapes. Their expedition leads them to a village inhabited by strange beings known as "hollows." Despite the creeping sense of unease that welcomes them, the three venture onward to uncover the mysteries of the settlement and long-lost legacies of the forgotten adventurers who once descended into the horrors of the unexplored Abyss.