Kagami Kouma loved to collect different kinds of objects and collections ever since he was a kid. One day, he was transported to another world by a girl who claims to be the daughter of the demon lord Lucifer! She needs his talent of collecting things to help her collect the 72 treasures in order to become as powerful as her father. What danger will Kouma face in his journey?

A side story from the popular Granblue Fantasy adventure series. Pommern, a soldier in the Imperial Erste Army, is thrown from a ship, and, guided by a mysterious voice, finds an ancient book on an unnamed island. From there, the story delves deep into his past...

Keitaro opened his front door one morning and suddenly transferred to a different world where demons and monsters live. Keitaro meets a young girl, Nia who is a half-demon. Nia urges Keitaro to "make a child" with her. Apparently, a half-demon woman can only have children with a human male...

He met a girl. A young girl branded with the mark of a criminal. That was the beginning of everything. "Crap, my girl's so cute" This is the story of the two who became an overly protective guardian and an adopted child, changing relationships, and furthermore until how that relationship evolves.

Keel, the hero of our story, is looking desperately for Siva the so called "best monster fighter" to retrieve something precious that he took away from him, on his search he joins a beginner monster fighter girl, along with her flying pig monster and goes for an adventure to find Siva who for some reason has been missing for two years.

Oono Akira, a working adult that can be found anywhere was transported to a different world while logged into a character known as the “Demon Lord” a game he manages. There he meets a child with a disabled leg and they begin to travel together, but there no way that others will leave a “demon lord” with such overwhelming strength alone. While being targeted by countries and saints that are trying to subdue the demon lord, they cause turmoil wherever they go. Demon lord on the outside, normal person on the inside, a misunderstanding type fantasy!

When a girl was taken to another world, for some reason she transformed into a half-cat beastman! Through a chance encounter, Cha found a new purpose in her isekai life - fighting youmas alongside her new comrades.

A normal person, Xin Yun, received a second chance by transmigrating to an unknown world. But because he chose to indulge in women, he lost his chance to become the most powerful. When he gets caught by the force a struggle between the nine most powerful experts, something unbelievable happened, or it could be said that a miracle occurred. Xin Yun was reborn and sent back to the place he had transmigrated over to. Having been reborn, Xin Yun decided he wanted to become the strongest being together with the three top experts from his previous life: the most beautiful dragon- Sparkling Butterfly, Yi Luo Xiang, the cruel dragon- Evil Empress, Yan Qing Ying, and the most dazzling dragon- Peacock King, Ming Xuan! Furthermore, he wanted to pursue love with the most beloved person from his previous life- Yi Luo Xiang! Xin Yun, making use of his good fortune, used his memories from his previous life to prioritized becoming friends with Yi Luo Xiang, Yan Qing Ying and Ming Xuan. He even received a godly artifact from his previous life- the Heaven Splitting Axe!

Humans live in the overworld, and demons in the underworld.
There is only one way for humans to travel between the worlds.
Mankind's last hope: WARBLE.

In an accident, an indifferent genius 10 year old boy falls along side a comet into a dreamland. There, he lives with the dwarves who inhabit the planet, using his talent and power to practice and grow his skills. Not only does he master the unparalleled smelting and forging techniques of the dwarves, but he develops a new form of martial arts as well. Just as he settles down and seems to be living a peaceful life, the cruel desires of others appear…

From Endless Youth and Co.:

Shunpei Closer's grandfather, Alsyd Closer, was an odd man. He traveled around the world always coming back to Japan to tell his grandson all the amazing adventures he would have. Before leaving to Africa on Shunpei's 7th birthday, he gives him a teddy bear named Hyde. Six years have passed and one day Shunpei receives a mysterious package that contains a deadly surprise. To survive, he will learn more about his grandfather than he ever dared to dream and learn what it takes to be a real man, and not the coward he always thought it was all right to be.

A story about the citizens who have forgotten about the pain of the war that happened one hundred years ago when the hero defeated the evil king.

Witches, dragons, and reverse London.

On his first day of transferring to a new high school, a loner named Mori Buntarou, is cajoled by a classmate into climbing the school building. Despite knowing that one misstep could send him spiraling to his death, he moves forward, and upon finally reaching the top, Mori experiences a sense of fulfillment. That feeling, which seems to be telling him, "You're alive!" gives birth to an adrenaline for rock-climbing.

Note: Sakamoto Shinichi did both the story and the art from Volume 4 onwards.
The manga won an Excellence Prize in the manga division at the 2010 Japan Media Arts Festival. It also won Best Seinen Manga at the 2011 Prix Mangawa Awards.

Collection of oneshots. Included works:

1. Osana Najimi no Majo ni Tsuite (幼なじみの魔女について)

2. Aoi-kun to Wasurenagusa (藍くんと忘れな草)

3. Nami no Hazama ni (波のはざまに)

4. Scissor Reset (シザーリセット)

A completely new work of romantic spectacle where Sennin - Doushi - Human living together in Ancient China! After defeat Jyoka - the last formidable enemy, Taikoubou had brought peace to the world. However, there's something make Taikoubou worried....?

1000 years ago, a war between humans and space witches ravaged the stars, destroying countless planets and taking even more lives. Eventually, the humans captured the most powerful witch and imprisoned her as a war criminal under the treaty. The castle where the Magic Lord is sealed away is watched over by a village where everyone has developed weak magical powers- everyone but Mugi that is. Determined to prove that he doesn't need magic, Mugi accidentally flies into the monster-infested forest surrounding the castle and is saved by a girl that he has never seen before...

The sequel to Chimamire Sukeban Chainsaw.

Mana, a girl who grew up in the countryside, left her hometown because of her dream to find a job at the Ministry of Precious Stones which deals with gemstones and mysterious energy.

Author's Twitter: https://twitter.com/marimuu026
Author's pixiv: https://www.pixiv.net/en/users/4270952