MTL - Super Dimensional Wizard - v6 Chapter 3284 wave energy amplifier

One day I got a younger sister.Only I know her true identity.

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...

A third-rate painter in the past life, and a chaebol in this life.

I thought it was a rebirth flow, but it turned out to be a system flow. I wanted to rely on myself, but you let me use a plug-in.

“Ding! Congratulations on successfully signing in to Mao Lilan. You will be rewarded with a Dacheng-level “Karate”, which the host can receive at any time.”

“Ding! Congratulations on successfully signing in Gin Wine, and a reward of [Servant Contract], which the host can receive at any time.”

“Ding! Congratulations to Suzuki Ayako for successfully signing in, and you will be rewarded with a copy of “Cash Capability”, which the host can receive at any time.”

…

- Description from novelbuddy

A young man with an extraordinary mind is off on an exciting adventure when he mysteriously wakes up in the body of a feeble slave-guy in a different, rich in quirks world.

The main character, a selfish jerk, would use extreme means to achieve his goals. However, he never allows his base instincts to overrule his sense of decency. He always pays back both good and bad deeds.

Will his (terrible/excellent) mentality help him make a fresh start? Will he get through misfortunes and hardships of the new world?