Useless Servant Boy Unlocks a SYSTEM Where Every Skill Gives EXP, So He Becomes OP

🔥 THEY MOCKED THE WEAKEST SERVANT… UNTIL HIS HIDDEN SYSTEM AWAKENED! Rain Kalin is nothing more than a scrawny servant boy from a poor farmer's family—weak, overlooked, and laughed at by richer trainees who believe he has zero chance of becoming someone important. Then one ridiculous accident changes everything. After waking up in a brutal medieval world, Rain sees something no one else can see: a mysterious SYSTEM panel that rewards him for learning, practicing, and mastering skills. But this world is far more terrifying than Rain imagined. Monsters are attacking towns, children are mysteriously disappearing, nobles are hiding dangerous secrets, and powerful warriors can destroy ordinary humans in seconds. Even worse, Rain's unnatural growth is starting to attract the wrong kind of attention. When a deadly threat begins closing in, his tiny advantage may no longer be enough. Can a weak servant truly level his way out of certain death? And what happens when something far stronger finally decides to hunt him? ⚔️ Watch until the end to uncover the truth! SMASH the Like button, SUBSCRIBE, turn on notifications, and drop your prediction in the comments—how broken will Rain's SYSTEM become? #ManhwaRecap #AnimeRecap #MangaRecap #Isekai #LevelingSystem #OverpoweredMC #FantasyRecap