The supporting character's harem is very normal - Chapter 53 Lathel vs Alec (1)

Through a twist of fate and cruel misfortune, Paul awakens in the body of his own ancestor, trapped in a world marching toward war. Forced into the ranks of the Nazi elite, he must walk a razor’s edge, outwardly loyal, secretly reshaping history and trying to stop the inevitable tragedy.From the reality of war, to ruthless officers, glittering parties, every choice could mean death.Can Paul use this second life to reshape history, or will fate deal him a cruel hand once again?

Xiao Ze, who was dedicated to the people and vowed to become a generation of Ming Jun, accidentally fell on a little lady.
The little lady was born beautiful and lovable.
So Xiao Ze accepted his life and got the name of fear.

ps:
①The male protagonist has no concubine, and he is dedicated to serving the country.

- Description from novelbuddy

A young man named Alexander Ashbourne is looking for a job to support his studies. He applies to work as a waiter at a restaurant. The next day on his 18th birthday, a system appears that generates money simply by idling. This system also allows him to trade with beings from other worlds or even visit their realms. Watch as Alexander rises to fame across all the realms.[DeathlessOne: I just spotted this mortal, 'AlexanderTheGrate,' trying to trade his drink called Mountain Dew. I'm thinking of offering my Flame Sword for it.][ShadowEternal: Wait, what’s a Mountain Dew?][TimelessWanderer: Are you seriously considering trading your Emperor-grade sword for a mere drink?][DeathlessOne: It’s not just any drink. The taste is out of this world, It's even better than the heavenly wine.][ShadowEternal: {...}][TimelessWanderer: {...}][Everyone in the chat: {...}][RichNigga: You know what, I’m in. I’ll trade my Gold Deluxe Armor just to see if this Mountain Dew is worth all the hype.]

After her rebirth, she stared at her drop-dead gorgeous husband and suspected that she must have struck her head hard at the door for demanding a divorce time and time again!

In her previous life, she was blinded and murdered by her blood relatives. Now that she was reborn, she vowed to hold on to this thick thigh of her president husband, ravage her enemies, tear down that white lotus and regain her happiness.

- Description from Novelupdates