Romance

From now on, you will become the butler of the Demon King’s Castle and live for me!

Lute, a young boy who was summoned to another world, but was abandoned due to his incompetence. The one who took his hand was the Demon King’s only daughter, Lurunoa. That encounter turns everything upside down. Three demon princesses with great hidden powers and secrets. When the mysteries of the continent are revealed, the boy becomes the world’s trump card!!

Maou Reijou no Shikousha - Isekai Shitsuji wa Ouse no Mama ni

Takagi Kaito, a low status high schooler, your typical Mob character so to say, was just a normal everyday explorer who hunted slimes every day in the dungeons that appeared in Japan, earning pocket money while admiring his childhood friend, the class queen, from afar. One day, a golden slime he had never seen appears before him. After he defeats it, he obtains an extremely rare item worth hundreds of millions as a drop, a servant card that can summon mythical beings!! After he makes up his mind and summons it, a warrior maiden with unparalleled beauty appears.

One day, Lobelia, the daughter of a marquis, realizes that she is the villainess of an 18-rated otome game and that, Lily, her beloved younger sister, is the main character.

"I can't let my precious sister be subjected to such a disgusting situation," she said, "And there's no way I was going to bully her!" So begins Lobelia's struggle to change her destiny!

"I Can't do this anymore!" Yuke Feldia, a red mage, just left his adventurer A-Rank party. After being mistreated as a handyman and ridiculed for five years, he finally snapped! And so began his desolate, unemployed life or so he thought!
Through a stroke of luck, Yuke is welcomed into an all-female adventurer party comprised of his former students!! As they defeat dungeons one after another, Yuke's strength is gradually revealed! As it turns out, this red mage wields extraordinary magic and skills?
A party of the protagonist who is a skilled supporter x newbie

Kanojo ga Senpai ni NTR-reta node, Senpai no Kanojo wo NTR-masu
My Girlfriend Cheated on Me With a Senior, so I'm Cheating on Her With His Girlfriend
แผน NTR แฟนรุ่นพี่ แค้นนี้ต้องชำระ
彼女が先輩にNTRれたので、先輩の彼女をNTRます

Yuu Isshiki, a first-year university student, learns that his girlfriend Karen is having an affair with his senior, Kamokura. He was so devastated that he asked Kamokura’s girlfriend and the most beautiful girl on campus, Touko: “Please have an affair with me!”

A thrilling romantic comedy that begins with an accomplice relationship.

Nekokado is an extremely straight-laced high school teacher who has lived alone since the death of his sister. But one day, he discovers a photo of her in a maid costume. He goes to a concept café in order to investigate his sister's secret, but there he meets a girl named Tsuruko…?!

The distant future: In a universe where humanity's mortal enemy is the alien race known as Bugs, an Imperial battleship suffers a mysterious and devastating attack that sends Captain Alan Corinth crash landing onto an unknown planet. Much to his surprise, rather than the technologically advanced humanity he knows, the humans he encounters there seem to live in a fantasy world filled with swords and magic!

The handsome Duke Voreoti is the most terrifying man in the empire, with the coldest of demeanors and a gaze that can kill. But one day, he suddenly says that he wants to...adopt a child?! And that child is me?! After finding me at a shady orphanage, he whisked me away to his snowy palace without a second thought. Now I’m learning all the ways of the feared Voreoti family from his knights. However, things get dicey when the Duke becomes suspicious of my origins. With these fangs and jet black hair, perhaps we are more than just kindred spirits…

Meikyuu Michisaki Annainin is a Japanese light novel series written by Ryō Shirakome and illustrated by Takahiro Arai. It was originally serialized online on the Shōsetsuka ni Narō website from July 2014 to September 2015, with the chapters later published by SB Creative under their GA Bunko imprint. A manga adaptation by Ryōma Ito began serialization in Square Enix's shōnen manga magazine Young Gangan from February 2020 to February 2021.

Left behind again, and again, and again.

The straggler was abandoned by all of mankind due to a cloaking technique unknown even by God.

“Why was I the only one left behind? Why did this happen to me?”

[In the end, even after God had devised a list of all the humans meant to be transported to another world, he could not find you. You said it was a truly phenomenal cloaking technique, right?]

So I, alone since birth, began my lonesome daily life on Earth, awaiting humanity’s return.