The World's Fastest Level Up (Manga) Vol. 1 (2025)

MEET THE NEW BOSSUsing his unique skill to bypass the standard wait time between taking down dungeons, adventurer Rin has been able to level up faster than anyone else. Now he’s run into an unexpected problem, and inadvertently triggered a secret extra boss fight! His opponent is stronger than any he’s fought before, forcing Rin to fight tooth and bloody nail. Can he claim victory, or will this overpowered boss claim its first victim?

RIN TO THE RESCUEFollowing a dungeon collapse, Rin’s former party, the Kings of Unique, makes the rash decision to take on an overpowered final boss. When Rin realizes that amateur adventurer Rei is also with them, he decides to try and save her, even if it means revealing his unique skill to the world. There’s one thing Rin doesn’t consider, though, and that’s the strength of the final boss itself. When worse comes to worst, can Rin take it on solo?

TOWER OF TERRORAfter weeks of maxing out dungeons, Rin finally completes his Dungeon Traveler title and unlocks the ability to challenge a brand-new dungeon—the Remote Magic Tower. The catch? Access to the tower is one-time only. Rin must prepare to face nonstop challenges that far surpass his expectations. Has he leveled up enough, or is he in over his head?

NO WAY OUT BUT THROUGHAt last, Rin has reached the final level of the Remote Magic Tower. Until now, the challenges have all been relatively easy—even the fistfight with the gorilla. But when he finds himself up against a heavily armored and overpowered foe seemingly immune to death, will his usual tricks and unique skill be enough to defeat it?

MALICIOUS IN DUNGEONJust as Rin completed the Remote Magic Tower, his younger sister, Hana, became embroiled in a life-or-death situation of her own. A unique-skill-stealing killer has targeted Hana for her Stock skill, and he may be even more OP than Rin! Rin is finally able to power up Dungeon Teleportation to the next level, but will it be enough to save Hana?

IN TOO DEEPAs Rin says goodbye to the Remote Magic Tower, he encounters the mysterious (and beautiful) Claire, a member of the Yoizuki Guild. Rin’s got an open invitation to join the guild, but before that can happen, he’s sucked into yet another dungeon collapse—this time for a B-rank dungeon with tons of high-level monsters pouring out. He agrees to assist Claire in the fallout, but can he keep up with her and survive the fierce battle?