Chase the Dreamworld

His parents became heroes, so he should have grown up happy. Instead, he ended up struggling to get by with his grandmother, the two of them relying on each other. In the end, his grandmother made a plan with someone he'd once saved, hoping to protect her grandson and give him a new life by helping him return to society. The protagonist begins to stand out amid conflicts between nations. After becoming the strongest, he arrives at the Heavenly King's Hall and discovers the truth behind everything.

It turns out this is only a game world, and people in the real world are watching his every move inside it.