My Classmates Returned from Cultivation, but I’m the Only One with a Hundred Thousand Levels of Qi Refining

[Urban fantasy + cultivation + satisfying power fantasy + return + play the pig to eat the tiger + invincible protagonist + a contrast with people he knows] Ten years ago, thirty-six students from Class Three, Senior Year, vanished together during their graduation trip to the Kunlun Mountains. Ten years later, spiritual qi revived and Earth underwent a dramatic transformation. Thirty-five “immortals” returned through the void, sending shockwaves around the globe! Their former class monitor, Zhao Tai, had attained the Nascent Soul Realm and could blot out the sky with one hand. He was hailed as a peerless God of War! Their former campus belle, Lin Qingxue, was half a step from the Deification Realm. She froze an entire province in ice, earning the worship of countless people! They stood above the masses, looking down on all living things. They founded sects and took on disciples. But when they looked toward Su Yue in the corner, their eyes held nothing but contempt and pity. “Su Yue, you've spent five hundred years in the cultivation world, and you're still only at the Qi Refining Stage?” “Since we were classmates, get down on your knees and serve as our pack mule. I'll keep your whole family safe for life.” Faced with these former classmates, shouting and showing off their supernatural abilities, Su Yue fell into thought. He really was only at the Qi Refining Stage. But reaching this level of Qi Refining required him to devour the spiritual qi of an entire galaxy. He really had only lived for five hundred years. But in those five hundred years, he had fought his way through the Upper Realm and forced gods and demons of every race to kneel and submit! His Qi Refining Stage had a total of 99,900 layers! You Nascent Soul and Deification cultivators aren't even as significant as motes of dust in my eyes. Since you want to play in the world's rankings, I'll humor you. Just... try not to get crushed by a single finger.