Naruto: The Life Changer - Chapter 80 -: Shimura Danzō

Transmigrating into a world of cultivation, you find yourself at the lowest rung of the sect's hierarchy. Everyone wants to bully you to gain some benefits. Fortunately, there are always a few junior brothers and sisters who are 'generous and understanding', allowing you to improve peacefully and secretly grow stronger. Years later, unbeknownst to anyone, you successfully become a deity within the sect. This day, your master visits you at the sect's request.'The upper echelons of the sect believe you have been diligent and loyal over the years, and though your strength is mediocre, you are an honest person, so they've found a marriage alliance for you.''An alliance marriage?''Not exactly. The other family has a rule: marrying into their family means taking their surname.'Is this... becoming a son-in-law who marries into the wife's family?

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).

- Description from novelupdates

"Your bed is cold," spoke a voice in the room that had her eyes go wide in fear. Nervously, she turned around, gulping softly to see a shadow on her bed as if someone laid down there. The man who had been lying down sat up emerging out from the shadows where he had been waiting for her.

Jiang Chao Ge, people called him “money hungry Jiang”. Went from a street hooligan to a newly appointed city official. The difficulties he experienced along the way he hid deep inside himself and did not say a word about it. He only wants be blinding in the eyes of everyone from now on.

Who would’ve thought that before he even had the chance to enjoy the wealth and reputation, he inexplicably passed into a different world. Moreover to his bad luck, the first thing he was faced with was being chased down to be killed. He just casually took a worn out rusted old sword to defend himself, why are these country bumpkins who’ve never seen the world chasing him so relentlessly?

In order to get himself a body guard, he tried to summon the ‘animal spirit’ in the sword. In the end, he summoned a devilish brat who rolled his eyes upon seeing someone, who only called him a good for nothing, who bit him whenever he got close. Where was the powerful, first class spirit weapon he was promised?!

No money, no power, no people, life constantly at risk. He couldn’t see the path ahead, nor could he face the fierce tiger behind. Jiang Chao Ge was beaten back into the abyss with one hit. In this unfamiliar world full of thorns, there is only one reason that allowed him to persevere and that is: to go back.

Hence, he was forced to embark on a desperate and risky journey with this devilish brat who he loathed mutually.

- Description from Novelupdates