1.99 Lucky Player

In a world where everyone awakens a class to fight monsters and demons, Kanzaki Haru is assigned what appears to be a useless class: Imperial Level Accountant. While everyone else sees it as nothing more than an ordinary class, the System reveals the truth only to him, his real class is the hidden Lucky Player. His strength comes from a unique gambling system. Every winning bet earns Luck Points, which can be spent to unlock new abilities and grow stronger. But every gamble carries a risk. Lose a single bet, and all accumulated Luck Points are wiped out, along with penalties that weaken his skills. — Description from novelcodex.org