Steel, Guns, and the Industrial Party in Another World - Chapter 9: Observations in Lakeheart Town

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

Plagued with Prosopagnosia, Making friends or lovers was the last thing in Yujin's reach and on Yujin's list, after all, when the dream is to be the Strongest Being in the world, love doesn't even register, yes?

“W-wait... what's this? I am... Eugene? The same guy from that Eroge!?”

Unable to remember faces at all, will the petty villain in the Eroge be able to keep his dream of being the strongest in the world?

“Eugene...”

Or will this Eroge bring his chastity under threat?

A Steamy Erotic Comedy of the Strongest Person like none other begins now!

Synopsis: Apocalypse King: The Return of LucianLucian died in the apocalypse—betrayed, powerless, and consumed by the undead. But fate gave him a second chance. Reborn one month before the end, he awakens with future knowledge, an overpowered system, and a ruthless new personality.This time, he will not be weak. This time, he will rule.With Infinite Storage, he stockpiles weapons, food, and everything necessary to survive the apocalypse. Winning the $3 billion lottery, he builds an impenetrable super shelter, reinforced with military technology, luxury, and high-tech defenses. Using his Beauty Evaluation System, he gathers only the most stunning women—90+ points or higher—into his harem, ensuring their unwavering loyalty.As zombies evolve, superpowers awaken, and the world crumbles into madness, Lucian will steal, conquer, and dominate.No gods. No heroes. Only the Apocalypse King.A brutal, R18+ tale of survival, power, and harem in a world where the strong take everything.

“I'm a fox girl, Master!”

Leveling up is not tedious if you have adorable girls by your side!

Leon started his second life with a challenging and callous test to receive a system, only to begin his first steps in another world with an adorable fox girl by his side.

How would these two start their journey, and who else will join them? What will Leon achieve in a different world? He may find more than just new happiness.