Oh No, I've Become the Fat Guy Beside the Protagonist

After transmigrating into a one-hundred-and-ninety-centimeter-tall fat man, Wang Lingfeng realizes something is wrong with this world: his roommate is a reborn business tycoon, his classmate is a clairvoyant appraisal prodigy, and the campus beauty has an ancient martial arts family backing her... And him? He's just the chubby background character beside the protagonist's halo, there to crack jokes, take the fall, push the plot forward, and ultimately die for the protagonist's grand cause! Luckily, he awakens the 【Comeback System】, which lets him see people's fortunes and invest in the chosen ones! He only wants to cling to powerful allies and coast to victory, but keeps getting dragged into business warfare, clashes between supernatural forces, and national security secrets... “Buddy, once I conquer the business world, I'll take you along for the ride!” His reborn roommate promises, clapping him on the shoulder. “Fatso, give me a hand and I'll introduce you to some girls later!” His clairvoyant classmate grins and dumps the problem on him. “Wang, could you take that assassin for me? Our ancient martial arts family will remember your kindness...” the campus beauty pleads pitifully. The rich girl he rescues insists on investing in him, his fallen brother entrusts him with a cheat, and even national security asks him to take an honorary position! As his reborn friend gradually turns evil and an even bigger conspiracy comes to light... Wang Lingfeng grins. “Don't panic, protagonists. Let me, the ‘supporting character,’ take charge of the whole game!” The protagonists' halos, opportunities, and underlings... I'll take them all. First, I'll steal the future stock market information from the Son of Commerce, then I'll take the identity of the God of War's lifesaver. As the protagonists go bankrupt, disappear, or end up in prison one after another, I sip wine behind the scenes. Years later, the Immortal Realm is shaken when a new overlord rises: a fat man. Crawling at his feet are the chosen sons of destiny from days gone by. “Good buddies, it's your turn to be the sidekicks.”