Worm (Parahumans #1) - Chapter 2: Gestation 1.

The Soaring Dragon Continent is a world of summons, you can only become strong if you become a summoner! Yue Yang, an average high school boy, was suddenly transported into this world. When he woke up, he was greeted with a lot of worried faces and found out that he had assumed another person’s identity. Turns out he’s the good-for-nothing third son of the Yue Family, who had just recently drowned himself because of a failed engagement. Unlike the third son of the Yue Family who was useless in summoning, Yue Yang succeeded in making a contract with a summoning grimoire on his first try, even when the other guy failed for the past fifteen years. Others would have a headache making contracts with beasts afterwards, but countless beasts tried to gain favour with Yue Yang instead, acting like a good kid before him.

Yue Yang the brat, however, didn’t feel grateful at all: “Scram, Mythical Beasts! Do you think you are cool like that? Go away from me now, I only like beautiful summons!”

Even when royal families approached him for his talents, the shameless brat replied, “I’m not interested in government stuff, I’m only interested in beauties!”

- Description from novelupdates

[ Mission completed successfully ][ $200,000,000 have been transferred to main account ][ Mission completed successfully ][ $1,000,000,000 have been transferred to main account ][ Unique key to a private Island has been transferred to Inventory ][ Ancient Relic: Excalibur has been transferred to Inventory ][ Skill Book: Dark necromancer has been added ]Awesome, isn't it?This became the regular lifestyle of Alister Ashworth, a poverty-cursed orphan who, following a torturous encounter, awakened the Infinite System, granting him the ability to travel through countless dimensions and realities, complete quests and engage in unique and ancient stories and obtain extraordinary rewards.Was it money? Fame? Treasures? Magic? Or even immortality?With the Infinite System, all these and even more could be achieved, although a deeper mystery quietly beckoned from the shadows!

When I woke up after being transported to another world, I am suddenly the antagonist? This script is wrong! I stole the other guy’s girl! I also have a super strong big sister! This script is even more wrong! There’s even an Overgod Space, along with the infinite worlds? I must be dreaming! Wu Ming calmly maintains his neutral expression and journeys ever onwards.

- Description from Novelupdates

Lucien, a guy who has nothing but the desire to save his mother. To get strong enough, he makes a contract with the demon of L.u.s.t. And now, only by making a great harem, will he gain the power to protect those dear to him.