The Inverted Lu Stat

"I should upgrade it first before using, who knows if I can upgrade it after that or not," he muttered to himself, while opening the info page of the gear, selecting to upgrade it.

"System alert: Does player want to upgrade the tattoo gear? Please select from your inventory the materials needed for upgrade."

As usual, he selected SS ranked level five material, and this time he was astonished to see it was only upgraded by one rank only, with a minimal difference on the main gear.

"Hmm, so every ten ranks the gear will go into a major change, huh?" he muttered, before hurriedly selecting twenty materials at once for the next upgrade.

"System alert: Player can only use ten more materials at most. To increase the rank further, please upgrade the player's level."

He sighed, as he felt how special this gear was. He chose ten materials only, and then the tattoo got upgraded.