Nine Evolutions of the True Spirit - Chapter 51: Patrolling the Sea

Having crossed over into a world of Chaos and Order, brimming with all manner of bizarre items, Qiu Tu discovered he had actually slept with a VIP’s mistress... Since he had already been discovered, might as well... go with the flow? Strengthening his power, cultivating his influence, unearthing beautiful... and powerful subordinates, he steadily climbed to the peak of this world! Cataclysmic abilities and strange items included: the Cihuang Stone that could erase one’s impression from others’ hearts; a mythical beast’s head that could summon storms with a kiss; a piggy bank that could store emotions; a reversal potion that increased Favorability when hitting someone, and so on...

Always looked down upon by others, Ji Feng gains technology far more advanced than the present, as he discovers its abilities, he begins to walk a path far from ordinary. With X-ray vision allowing his to find jade stones in rocks. With this futuristic technology, Ji Feng accomplishes something no-one can compare to. This is the beginning of a legend.

- Description from Novelupdates

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

An old MMORPG called Live Dungeon. Before the service was terminated, Kyotani Tsutomu made full use of 5 notebook PCs to clear the game and was invited to a different world. And then, Tsutomu was speechless when he saw a live relay of a dungeon capture in the different world. They bulldozed through without any thought of strategy. The misfortune of getting the healer position. Tsutomu reinstated the White Mage that had always been his favorite in games and aimed to conquer the dungeon to find the key to his escape from the different world.