Runemaster in the Last Days - Chapter 12: Confined

I originally thought this was a world like an ordinary urban novel…Drawing comics by myself, traveling is pretty good.
But tell me, what happened to this magician called “Emiya Kiritsugu” who jumped on my face?
Who changed the settings?
Currently involved in the content of “F/Z”, “F/SN”, “Fantasy Carnival”, “The Emiya’s Meal”, “The Holy Grail of the Imperial Capital”, “FLA”, “Elmello II Event Book”, “FGO”, “FE”, etc.
Others related to “JOJO’s Bizarre Adventure”, “Rebellious Lelouch”, “Persona 5”, “Attack on Giant”, “Death”
“FGO”, “FE Series”, “FA”, “FSF”, “Cangyin”, “Magical Girl Illya” will be involved next…

- Description from novelbuddy

After living a hopeless life and getting exploited to his breaking point for his unique powers, Mithras is diagnosed with a terminal illness, about to die a brutal death when he is murdered anyway by his boss for refusing to betray his sister.

Reborn as the Human Aphrodisiac, and now equipped with a lewd system, Mithras is determined to use this second chance to avenge his past grievances and breed his boss' slimthick mom with a million babies!

But there are two problems:

1) He is now unkillable, but can only heal his injuries and sustain his immortality by drinking breast milk or love juice!

2) The System has not only turned his entire body into an aphrodisiac but also made his cum into a five-star delicacy that can not only improve the beauty of any woman he has sex with but also turn them into peerless warriors!

“Mithras, we want your secret juice!”

“Ok. But how much are you willing to pay for it?”

[Ding! Ding! Ding!]

[Hidden Quest...Bad Girls Become My Bitches...completed!]

[Hidden Quest...I Don't Stuff For Free...completed!]

Surrounded by beauties chasing after his secret juice, and persecuted by their greedy admirers, can Mithras protect his secrets and stay true to his past life's principles, or will he indulge in the temptation of his new powers, becoming the Harem God of a generation?

Spoiler Alert: Of course, he will!

Lan Xuan smiled gently as she said, “My dear sister, who told you to obstruct my path? Your man belongs to me, your dowry belongs to me, your everything, belongs to me.”

With bloodshot eyes, Zhao Hong Xiang bit his tooth and said clearly, ”Don’t blame me, when you were alive, you were a part of the Zhao family, even when you die, you will remain a ghost of the Zhao family. I will not allow myself to be mocked by the world because of you. Instead of living so miserably, why not die early and reincarnate early? Xuan’er has said that your dowry consists of 60 thousand liang of silver, I can’t let you take it away, so… why don’t you… GO TO HELL!”

In the midst of a night thunderstorm, the kindhearted but cowardly daughter of the general of the Great Yan Empire, Mu Zi You, was strangled to death by her closest friend and husband using a rope. When she died, she had a stomach full of regrets and grievances.

Just when she thought she died wrongfully under the hands of her friend and husband, she opened her eyes once more only to realize that she had been given a second chance. She had been transported back by 4 years. Forcefully breaking through the seal her mother left on her soul, she was granted with supernatural power. “I swear that I will only allow myself let others down but not the other way around! From now, I want my revenge!”

Evil stepmother? It’s alright, I’ll destroy your reputation before sending you on your way to the yellow spring (TL note: yellow spring = Hell). Hypocritical friend? I’ll ruthlessly tear off your facade and give you a taste of the pain I once felt. The princess conspiring against me? I’ll just throw her into the mass grave. Since none of you are willing to let me enjoy my life, I’ll drag all of you down with me!

Just when she intends to distance herself from hypocritical douche-bags, who knew that her devastatingly beautiful appearance would attract even more butterflies.

That guy whom abandoned her like a dirty shoe previously is now saying that he will marry no one but her.

Princes chasing after her, willing to use any methods and do anything just to get in her good graces, and a drop dead gorgeous hoodlum involving himself with her, who will she choose?

- Description from Novelupdates

Baek Ain is your typical lazy guy.

He graduated from university at age 22 with a random degree he chose out of boredom and stayed single because fate decided so until that event happened.

“What? Where Am I??”

After a horrible incident, Ain transmigrated to another world. Or precisely to be a villainous and mobs character.

He died countless times because of the world's protagonists, gathering hatred toward them.

“What the fuck! What do you mean I stole your wife? I've been single since coming into this world!!”

“Hero, please save this world.” A goddess is begging me to save her world from the Demon Lord.

“Wait... Begone thot! That Demon King is my younger sister from 69th Transmigration.”

“How dare you!”

A beautiful heroine is hugging me from behind, wishing to accept her feelings.

“Shoo, Heroine! I don't need useless baggage with me. Side characters are better than you!”

And so, Ain's journey began to end this shitty transmigration cycle.