Nanotech Armor: I Got an Invincible Suit from the Start

(On hiatus while I revise the plot.) [Sci-fi armor + a fresh premise + a core-fusion upgrade system]

Hunted by the Divine Realm for possessing the “weakest stellar-class core,” Shen Moyuan gradually discovers that this so-called “weakest” core always seems to defeat powerful foes at crucial moments.