The everyday life of Nakano, a salaryman working for an exploitative company, is suddenly intruded upon by the Kitsune, Senko-san (800 Years Old - Young Wife). Whether it be cooking, cleaning, or special Service(?)... she'll heal his exhaustion with her tender "care".

“There’s still more to do, that’s why I need more time”.
With a strong determination, the old man picked up his Rejuvenation potion. The secret of this particular potion is that it rejuvenates the body while preserving the person’s memory. Essentially the fountain of youth. The old man took it anyways and it took a while for the potion to take effect.
--500 years passed…
The man, or young boy at this moment, awoke and found himself in the same world yet different. Nations disappeared, Regression of Civilization, decline in human skills and even basic alchemy has been lost!
Lost Knowledge, Lost Technology! Nothing impossible in the mastery of alchemy!

In this world, Makai, every Demon gets a Familiar summoned using their magic. Patty, a Demon Girl who's magic is so weak she can't even summon an animal is forced to get a famliar. So, reluctantly, she chooses an older human named Norman as her familiar. Norman has an incredible fascination with examining all types of lifeforms around Makai, claiming he loves learning about them. This weird combination of a weak demon girl and a goofy old man leads to a journey of adventures the two go through.

The brave tale of the peerless Great Emperor Leonard the First was evaluated as a universal truth.
However, in his younger days, before he managed to unify the continent, he was a boorish and clumsy young man, he got his homeland taken away from him and was branded with the infamous name of “Nosferatu”. This is the story of a great counterattack, a great revolt.

Leonard vowed to recover his homeland and truly became a mighty warrior. Several great generals, sages, talented women and geniuses comparable to gods and demons got attracted to the single-minded Leonard and congregated around him. Eventually, they became a great force able to engulf their depraved fatherland and contended against rival countries.

One day, the world transformed into a game.
'Dungeons' and 'monsters' emerged in the middle of cities, and 'players' who had received the gods' authority appeared.

Se-jun Lee, the guildmaster of the Messiah Guild that would bring salvation to the world.
"Let us save the world together. Let's put an end to this nightmare."
The whole world celebrated the hero's appearance,
And I became his comrade.

But...

He wasn't a hero nor a messiah like the world was hailing him.
He was a deceitful hero with the secret ambition to rule the world.
"You did well. If it weren't for you, I couldn't have come up till here."
I lost my life at his blade in the last dungeon.

...or so i thought.

The announcement I heard next to my ear the moment I died.
[Starting the game.]
I returned to the past, back when I still hadn't awakened as a player.

And this time, It's my turn......

To 'hunt' him.

Naoe-kun is a massage therapist at the "Smiley Boar" clinic. One day he gets a new patient named Erufuda-san, who turns out to be an Elf from a different world. All the junk food of this world has taken its toll on her figure. Now she'll try to lose weight with the help of her trusty massage therapist. But Erufuda isn't the only one from her world who's been affected.

Abel was a genius magician who held immense power in a world where the color of your eyes indicates how powerful you are. However, the strength that came with his amber eyes was so great, even his comrades looked at him with fear and contempt. He therefore decided to transfer his soul far into the future, hoping to find a paradise that accepts him. He would soon find out that people’s attitude regarding his eye color did change, but not quite the way he had imagined…

This is a story about a young man named Rizel, the prime minister in a fantasy world who is suddenly transferred to another world. However, with his brains and his unique speech, he partners with a man named Jill and becomes a brilliant adventurer.

Though he doesn't know whether he can return to his own world, Rizel will 'think of this as a vacation to enjoy another world's life'. The laidback adventures of a leisurely aristocrat!

Author's note: The protagonist forges many male friendships where deep camaraderie is present, so much so that it is necessary I assert there are no romantic feelings involved and therefore not BL.

From Phoenix Serenade Scans:

Meet Colette, a young doctor. Since she's the only doctor in town, she has to attend to everything, and quite honestly, she thinks she needs a break. One day, she's so frazzled that she jumps into a well. But, she didn't die? Instead, she finds herself in the underworld, where she encounters Lord Hades. Somehow or the other, she becomes Hades' doctor. Follow Colette in her new (though still busy) life, now with Hades thrown into the picture!

There has never been a hero like this before!
Is he a hero or an actual demon?

Kang Hansoo was summoned to this world with his classmates.
His classmates were amazed by this brand new world and the magic in it, but the only thing Hansoo wanted to do was quickly return home.

“Why would I give up my warm, comfortable house to have an adventure in this world…?

Even the goddess that summoned me said that if I wasn’t willing to, there was nothing she could do to force me and promised to return me to my original world.
She did teleport me, but…

When I opened my eyes, I was still in this world!
All of my friends were gone, and the only thing around me was monsters!!

A goddess tricked me…?
How do I get back home now…?
More than that, how do I survive here…?!“

Note: This is a direct sequel of Senyuu Main Quest Part 1, which should be read before starting Part 2.

Hero Lyman and Royal Soldier Toryuu, sent off by the King to subjugate the Demon Lord. The two of them are facing off against rampaging demonic beasts to protect some children. But just when they thought all hope was lost... he appears! Who's grown stronger than anyone could've ever believed! What kind of battle will he show us?

Rib Ma- whoops, that is, Hero Alba's new adventure starts now!

(This is a manga remake of Season 2 of the webtoon "Senyuu." Most of the plot remains the same, but with some additional scenes added and minor changes to dialogue.)

Full-length side story featuring Jasmine and her past before she joins the Twin Horns.

This is never before seen content separate from the novel but entirely canon.

Minato is a college student who died in a plane crash and was reincarnated in a fantasy world. He was raised alone in the wilderness by his succubus mother, and now he tries to make his way as an adventurer

When the end of the world came, in the hopeless darkness, Gu Qingshan broke away from time and space, and returned to the world before it collapsed, determined to change his fate. But as time went on, he gradually realized that the apocalypse is not as simple as it seemed…

<Undead> Noh Eunha.
After losing his family and closing off his heart, he just wanted to kill the monsters he loathed.
I regressed before my life came to an end in the deepest part of the <Abyss Dungeon> that was impossible for mankind to raid.
Since I’ve been reborn as a baby, let’s make this life different.
I will do anything for the sake of my happiness.
I’ll kill in order to live, and I’ll do my best to survive.
Even if I have to walk a thorny road by myself without anyone acknowledging me.
This life, I will definitely—

This is a world of magic where magic is used for everything. But deep in the forest exists a young man who spends his time training and bulking up. He can't use magic, but he enjoys a peaceful life with his father. But one day, his life is put in danger! Will his muscular body protect him from the magic users who are out to get him? Powerfully trained muscles crush magic as this abnormal magical fantasy begins!

Lydia, the daughter of a count, reincarnated in an otome game, "Easy Love Simulation Reincarnation System." Life should have been easy… However, because she changed the god's scenario, she has no luck?! With two failed attempts at marriage, worried about finding a decent man to marry, a black knight, who misunderstood that she was looking for a "sacrifice" for drug experiments, came?!

Lina, a healer with a magical power called "Saint," is one day suddenly exiled from her childhood friend's party of heroes! Lina is shocked by the unreasonable expulsion, but she quickly forgets about them and decides to live the slow-life she longed for! Just at that moment, another childhood friend appeared, Henri who is now a nobleman. He is excited to see Lina again for the first time in 5 years, but for some reason there are suspicious movements among the heroes' party?! A second life filled with trouble for the strongest saintess who just wants to live leisurely, the long awaited comic serialization!

“I” who died in an accident in this world was reincarnated in a strange world when he woke up. Moreover, not humans but demons …

He was attacked by a monster in a different world without knowing right or left, and was saved by Charlotte, the daughter of the Duke, after he managed to escape from his life.

She is kind and innocent, and has been hurt by the so-called slanderous defamation since her sister-in-law Lily arrived.

Then it’s my turn to save Charlotte!!!

High school girl Akari mourns the loss of her mother who died when she shielded Akari from an oncoming truck a year ago. She discovers an adventure game her mother had gotten for her birthday some time ago, but never had a chance to finish. Suddenly, she is summoned to be the mother of the Demon Lord's 10 children in another world...