I Have a Mansion in the Post-apocalyptic World - Chapter 21 - Work for me?

The main character Lei Yu does not have the ability to practice his family’s martial arts. He gets stepped on and tossed around. Due to certain reasons, he leaves the family, coincidentally gains an ability, and makes his own path to becoming an immortal.

To pass as an imperial concubine, one must be professional.

Actually, the profession of an imperial concubine is pretty good. The emperor will accompany you in eating and drinking, and even pay you for it. What’s not good about that?

One day, Jiao Bai went home and passed by the small bookstore, walked in. The boss recommended a batch of new goods to him with a fatherly face, all of which were rotten. He went home happily, but was hit by a car at the intersection in front of his house, and as soon as he opened his eyes, he was in a BE scumbag.

Hehehe. Jiao Bai folded his hands on his stomach, lying on the big white bed with a peaceful face, he dressed as one of the candidates… of the little stepmother of that scumbag. Oh, by the way, the protagonist in the manhua, the cheap Shou, is the white moonlight of the character he passed through. Now, washing up in the bathroom is an old friend of the protagonist gong’s dad, and next door is the slag gong’s dad and his old friend’s ‘Little Pepper’.

- Description from Novelupdates

The strongest Hero in history, Nakamoto Keisuke.

He was summoned to another world in the spring at the age of fifteen years old, and when he successfully defeated The Demon King, he was already thirty-two years old. He had finished his role in another world and returned to Japan, but the reality that had been waiting for him was, “Middle school graduate with seventeen years of blank period” label. He couldn’t find a decent job and had no choice but to spend his days working part-time.

Before such a Nakamoto, a beautiful girl who self-proclaimed had come to return the favor, appeared. “I’m the reward for Hero who had defeated Demon King”, said Angelica, a girl who came from another world that persistently tempted Nakamoto to make her his wife. Together with a high school girl who looks like Elsa, his beloved girl that he lost in another world, Nakamoto with his cheats skills got caught in a harem life.