Seventeen year old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside... more>> down when he, along with the rest of his class, is summoned to a fantasy world! They're treated like heroes and tasked with the duty of saving the human race from utter extinction. But what should have been any otaku's wet dream quickly turns into Hajime's nightmare. While the rest of his class are blessed with godlike powers, Hajime's job, Synergist, only has a single transmutation skill. Ridiculed and bullied by his classmates for being weak, he soon finds himself in despair. Will he be able to survive in this dangerous world of monsters and demons with only a glorified blacksmith's level of strength? <<less

Lu Wu, an aimless video game developer, had been feeling perturbed ever since he found out he was the direct descendant of a king from the underworld. Other than the title, His Excellency, his ancestor hadn't passed down anything else to him. On top of that, all of his ancestor's subordinates had rebelled against him and completely usurped his inherited territory.... more>>

Under the circumstances, Lu Wu built a battle game server with the help of his new mysterious friend and transported gamers from the real world straight to the underworld using virtual reality. They then created the main quest, the character classes, the Instance Dungeon, the storyline, and the non-player characters for the game.
Relying solely on these video gamers' strengths, Lu Wu began his expedition to reclaim his rightful inheritance. What could possibly go wrong? <<less

An isekai, but one where the MC has been living in the other world for a while already.... more>>

Al, a summoner, tries to summon some monster helpers for a quest but accidentally summons loli monster girls instead: a succubus, a lamia, a slime, and a zombie.

They aren’t powerful enough to help, but (after the succubus does what succubi do) he finds out having s*x can boost their magic. However, each species of monster girl presents a unique challenge in getting that method to work. <<less

One day, Yoichi who grew up while not knowing his parents has received the news of his father's death. His father left behind a testament——which said he is to pick only one out of five 'little sister candidates'?!... more>>

"...I don't want to work, I want to laze around together with Onii-chan." (By Serene)

"Let's have a match! If I win, Nii-chan will... make me his little sister!" (By Tomomi)

"Onii-sama will choose me, isn't that right? It's our destiny." (By Sayuri)

"To be more girly, that's why I want to be Nii-san's little sister!" (By Yuuki)

"If Mii-chan becomes Nii-chama's little sister, she will become rich right?" (By Mika)

The little sisters who were presented to him had more than one or two odd quirks, a slapstick comedy between siblings starts here! <<less