Slay the Gods: Agent of the Darkin, Aatrox from the Start

【No CP + LOL + Slay the Gods + lighthearted + no angst】After transmigrating into the world of Slay the Gods, Su Nian discovers that he's become Lin Qiye's homeroom teacher. And he teaches math! Face the Abyss and become a Darkin. Embrace the Abyss and wield living weapons. By devouring the mysterious or absorbing the powers of Forbidden Ruins and Divine Ruins, he can unlock his weapons' progress. Aatrox, Kayn, Varus, Naafiri. He gradually gains their powers. When all four weapons are fully unlocked, Su Nian will be able to summon a Darkin army from the Abyss and slaughter every god. I wonder if this mist can quench my fury! “My greatsword is thirsty.” “The child is dead. The killer lives on. I am your end.” “This arrow of mine will pierce the stars!” “We have hunted for millennia. Everyone is my prey, and no one can escape.” The Abyss returns to the world, and Su Nian will command countless Darkin. The heavens will run red with blood, and everything will burn.