The Devil's Cage - Chapter 5: Ambush

Our MC dies from an accidental electrocution and ends up inhabiting the body of a young prince in another world, his new profession being the Necromancer he chose in the game he was playing before his untimely demise. However, things are not what they seem – including his own Necromancy skills!

In a realm of four kingdoms, two were on the verge of war. Prince Eirik, the fourth prince of Valeidio, a Ferre whose beauty could rival the gods, was thrust into a marriage alliance with Prince Kaelix, the strong and proud heir of Zephyros.Both princes were determined to fight against the fate that had been forced on them. Eirik resented being used as a pawn, while Kaelix saw the alliance as a threat to his freedom. As they clashed in a battle of wills, their encounters became a constant push and pull of resistance and pride.But as the pressures of duty mounted, the lines between obligation and desire began to blur. In their struggle against their forced union, they found themselves drawn toward each other in ways they never expected.Would their bond become a weapon against the war or would their kingdoms' rivalries destroy any chance of love before it could take root?

Mo Tianliao was a master weaponsmith and a demonic cultivator. When news spread that he was about to complete a divine weapon, cultivators from both the demonic and orthodox sides chased him down and killed him. In a stroke of luck, he managed to possess a new body and was reborn.

So what was the first thing on his mind after his rebirth? Avenging his death? Taking over the world?

Mo Tianliao: I have to find my cat!

—
Mo Tianliao: Why won’t you let me hug you? You used to be my cat!

Master: (unsheathes claws)

Mo Tianliao: Ahaha, this disciple has too much respect for Master, this disciple can’t bear to let Master walk on the ground!

Master: (lifts paw, sends disciple flying)

- Description from Novelupdates

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?