[Winner of the April 2024 Royal Road Writathon challenge] Overpowered? Check!  Transmigrator? Check! Golden Finger? Check! No Harem? Check! Low-Key MC? Check! Looking for a story with those qualities? Well… you have come to the right place! You don’t have to worry, the MC is truly low-key. He isn’t going to look for trouble out of nowhere. If he is, he’s going to hide his identity well. He wants to be the [Hidden Boss] after all… More serious synopsis: Awakening as an apprentice wizard within the Lightning Magic Tower of an unfamiliar world, Zack, an ordinary introvert, confronts a daunting reality: estranged from his loved ones, he faces an uncertain future. Yet, fate has granted him a unique boon—the coveted "golden finger." Little does Zack realize, this gift is no mere trinket but a key to grasp “Infinity”. Embark on an epic adventure alongside Zack as he explores this mysterious realm, delves into the arcane arts, and unravels the secrets of his newfound abilities. But amidst the magic and danger lies… the possibility of unexpected romance. Prepare to be spellbound as Zack's journey unfolds—a tale brimming with intrigue, enchantment, and the promise of limitless potential. Note: If you enjoy the story, consider supporting me on Patreon to help me keep writing. Plus, you'll receive access to 10 advance chapters!