SHOUNEN

MC was a top solo player in VR game "Connect".
During a quest, he discovers a mysterious cartridge, and, is then murdered IRL by a mysterious group.

He then reincarnates as an NPC in Connect - years before players come into the world.
With his knowledge of Connect, his skills as top player and the coming wave of people soon comming to Connect, he decides to use these factors to turn the tides in his favour and uncover the truth - of Connect, his murder and the common link of it al

His return isn't just a trip home, but the 2nd part of his journey unfortunately, as the world has become a hunterverse planet.
OP MC through his 10 years on Eden fighting demons

Tower player based, rebirth save-the-world plot with multiple mythology referrences (Olympus, Asgard, Journey to the West)
Great comraderie, exciting plot and good action art.
The prospect of Tower world vs Outer gods is a very good take on the tower climber story.

No signs of romance, specially since MC is just speedrunning and minmaxing his journey up the tower

Playerverse system suddenly errupts in the world; choose a class and complete quest, or become a beast.

MC is a necromancer, able to create an army of undead, and, a black magician, able to debuff his opponents.
Clear-headed, quick thinker and decent human being, he rapidly grows into a powerful player.

Endless action, character growth and great characters.

If you play RPGs, this'll inspire you to try being a necromancer.

Read about 150+ chapters and no sign of romance