From the Start, I Have an S-Rank Light Ability, and I'm Unbeatable Among My Peers!

[Genius Protagonist + Relentless Grinder]

“Please note: This System has only two fundamental rules. It exists solely to assist the Host in cultivation, with no shop or point system.” The panel flashed again a moment later.

“What are the fundamental rules?” Chen Xing asked.

“First: When it comes to cultivation and comprehension, any combat technique or method that matches the Host’s attributes can be mastered in one second, with accelerated progress in further training. If its attributes do not match, the effect will be completely reversed.”

Chen Xing rubbed his chin, looking thoughtful.

“Not bad, but the drawback is pretty obvious. It doesn’t seem all that useful.” He frowned.

“Everyone else can destroy the heavens, the earth, and even the air in a second, but you still expect me to work hard as a relentless grinder. Oh well, I might as well take what I can get. What’s the second rule?”

The screen flickered, and a line of golden text appeared.

“Second: There are no methods that don’t match your attributes.”

Chen Xing: “?”

You should’ve said so sooner! I love being a relentless grinder!

…

Many years later, whenever his opponents found themselves on the back foot, they would feel despair.

Chen Xing: “You’re despairing, right? That means you’re hoping for a glimmer of hope.”

Opponent: “?”

“If you’re hoping for hope, then you need light. I’ve got some right here.”

“Wait, you’re not even losing! Why are you glowing all over? What do you have to despair about?!”

“I’m only in charge of shining. As for despair, I’ll leave that to you.”

“…”

(The synopsis may not do it justice. There may be more plotlines about supporting characters to highlight the protagonist.)