Ten years have passed since dungeons first appeared on Earth. Humanity has gained superhuman abilities known as "Levels," "Stats," and "Skills," and those who use these powers to conquer dungeons are called Seekers. The protagonist, Renya Kamikura, suffers from recurring strange dreams and headaches, until one day, he remembers his past life as the mighty Demon Lord of another world. To his shock, all the dungeons appearing on Earth are ones he had created during his time as the Demon Lord! With his exceptional skills, extensive battle experience, and deep knowledge of magic and dungeons, Renya quickly ascends to become the strongest on Earth, standing unrivaled against all formidable opponents.

Phelina remembered her previous life right after she was convicted, and found herself reincarnated in the world of her favourite otome game. However, Phelina is a villainess, and on top of that, she will be executed tomorrow! I can't die without seeing the confession scenes of my guesses, which I was so excited by the beautiful stills, with my own eyes...! Involving the helpful knight Alfred, who was the most popular character in front of me, I will retrieve all the beautiful stills and avoid the execution on the way!

A 33-volume collection of award-winning oneshots put out by Kodansha from 2002-2012. Some of these would later get serialized or collected in other volumes. **Serialized or otherwise collected:** AKABOSHI Tomo [Shishunki Syndrome](https://www.mangaupdates.com/series.html?id=10895992058) AKIZUKI Risu [Oku-sama Shinkaron](https://www.mangaupdates.com/series.html?id=8585) ARAI Hideki [8-gatsu no Hikari](https://www.mangaupdates.com/series.html?id=48516) ARAMAKI Keiko [GENOMES](https://www.mangaupdates.com/series.html?id=100366) ASADA Torao [Spoonman 3.18](https://www.mangaupdates.com/series.html?id=7155) ASHINANO Hitoshi [Yokohama Kaidashi Kikou](https://www.mangaupdates.com/series.html?id=586) Endo Hiroki [Kitto Kawaii Onnanoko Dakara](https://www.mangaupdates.com/series.html?id=5984) ENOMOTO Shunji [Golden Lucky](https://www.mangaupdates.com/series.html?id=44334) IGARASHI Daisuke [Obayashi ga Hikoeru Hi, Hoka (collected in Hanashippanashi](https://www.mangaupdates.com/series.html?id=2347) IRIE Kiwa [Haikibun! Sakanahime](https://www.mangaupdates.com/series.html?id=54246) IRIE Noriko [Neko no Te Kashimasu](https://www.mangaupdates.com/series.html?id=34406) KIMURA Kon [Koube Zaijuu](https://www.mangaupdates.com/series.html?id=6616) KITOH Mohiro [Vandemieru no Tsubasa](https://www.mangaupdates.com/series.html?id=2395) KOMAI Yu [Sonna Yatsua Inee!!](https://www.mangaupdates.com/series.html?id=16844) MATSUMOTO Taiyou [STRAIGHT](https://www.mangaupdates.com/series.html?id=9964) NIHEI Tsutomu [BLAME! (prototype chapter, included in NOiSE)](https://www.mangaupdates.com/series.html?id=2275) OHARA Shinji [Boku wa Otouto](https://www.mangaupdates.com/series.html?id=23188) SAMURA Hiroaki [Mugen no Juunin](https://www.mangaupdates.com/series.html?id=1628) SOUJI Hajime [Sanmon Mirai no Katei Houmon](https://www.mangaupdates.com/series.html?id=95297) TOUME Kei [Kurogane](https://www.mangaupdates.com/series.html?id=1034) TOYODA Minoru [Love Roma](https://www.mangaupdates.com/series.html?id=5227) TSUCHIDA Seiki [Miseinen](https://www.mangaupdates.com/series.html?id=65435) URUSHIBARA Yuki [Mushishi prototype chapter, collected in Filament](https://www.mangaupdates.com/series.html?id=35219) WAKANA Shouhei [Kamen Tenshi](https://www.mangaupdates.com/series.html?id=38659) **Other:** Hiramatsu Kannosuke [Yume](https://www.mangaupdates.com/series.html?id=134645) ABE Yoshitoshi [Ame no Furu Basho](https://www.mangaupdates.com/series.html?id=70439511114) Eshikawa is a man who has lost sight of his life and stumbles through it, with no clear meaning or purpose. One day, he is informed that his ex-girlfriend committed suicide, which sets his brain on retrospect mode. He goes on a journey of self-revelation and contemplates upon the myriad of human emotions, the joys and sorrows of normalcy. YAMAZAKI Ren [Like a Laika](https://www.mangaupdates.com/series.html?id=15464858831) From Atelier du Noir Scans: The daily, average life and interactions of some of a ship’s crew as they depart to explore space. Winner of the Jiro Tanaguchi Special Award for manga in the 2010 Four Seasons Award Anthology. NADEGATA Nazuna [Kokenoshima](https://www.mangaupdates.com/series.html?id=25320595156) From Atelier du Noir Scans: On a remote island, a skilled swordsman who honed his craft on the local population attempts to atone for his sins and lift a curse by hunting and killing demons. Winner of the Hagio Moto Special Award for manga. KIBA Kouichi [Jagua](https://www.mangaupdates.com/series.html?id=26870403448) As the protagonist is returning home one night, she runs into a man who had just been in a car crash. As he is dying, he asks her to throw a certain package into the sea. JOUYAMA Yui [Zanuff the Butcher](https://www.mangaupdates.com/series.html?id=57841268625) A butcher with a dark secret finds a little girl. HAYASHIDA Q [Sofa-chan](https://www.mangaupdates.com/series.html?id=9150331372) Tells the story of a female ghost who lives on a couch and it's the debut work of Q Hayashida as mangaka. KANOU Rie [Kingdom of Stars](https://www.mangaupdates.com/series.html?id=20282565791) Oneshot about love, religion, and a big misunderstanding that leads to a weird situation...

"We've been switched!" Ichika, a high school girl who aspires to become a female announcer, and her twin brother, Houtarou, a high school boy with a girl's heart and a boy's body, are hit by a truck in the middle of a quarrel between them and are reborn in a different world. Their hearts and bodies are switched and they are reborn in a different world. Ichika wants to go back to her original world and become a female announcer, while Houtarou wants to live as a woman in another world and be herself. [Original Webtoon](https://www.comico.jp/comic/7341)