Level 1 to Infinity: My Bloodline Is the Ultimate Cheat! - Chapter 9: Trade Completion.

At 18, Alex Kain is whisked away to Eryndor, a game-like realm where he gains 'Skill Synthesis', a talent to fuse skills into godlike powers. Battling monsters and conquering dungeons, he builds a harem of strong women drawn to his might and charm. With the power to return to Earth bearing incredible resources, Alex faces a growing threat that endangers both worlds in this epic of adventure, romance, and ambition.

I became the childhood friend of the protagonist in a novel. The childhood friend who died from taking drugs.

“Not even the gods can stop me from finding my family!”Max only wanted to reunite with his parents and sister. But for that, he had to awaken a class.With no high expectations, Max would’ve been satisfied with a C or D rank.But fate had other plans. He unlocked a legendary SSS-Rank class.[Dimensional Keeper]This class changed everything.Max mastered every skill to perfection and grasped the Concepts of Space and Time while his peers were playing around with swords.In no time, he ascended to become the Keeper of the Universe. Armed with unimaginable power, Max’s journey to find his family had begun.Nothing could stop him now—not fate, not enemies, not even the mighty gods!

Chen Yu has the Sports Medicine Master System, which allows him to make precise diagnoses and gives him CT-like eyes.Yet he gives up his promising career in the hospital but chooses to serve sports stars in NBA.