A series in *Young Magazine* and *Young Magazine the 3rd* where authors create the 100th chapter of a series… without creating Chapters 1–99 first! 1. *Offside Trap* by Kumeta Kouji ([Young Magazine 2015 No. 6](https://magazine.yanmaga.jp/ym/2015/2015-6.html)) Ashida Isami is the star player of the Kota High Soccer Club, and childhood friends with its manager, Kaneda Chiyo. Just as his teammates go missing, his mysterious rival recovers from an injury… 2. *Look Forward To When You Eat It!* by Ooima Yoshitoki ([Young Magazine the 3rd 2015 No. 2](https://magazine.yanmaga.jp/ym3/2015/2015-2.html)) (Raw: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/01/11/110000)) 3. *Bravery Saga* by Yoshimoto Masume ([Young Magazine the 3rd 2015 No. 3](https://magazine.yanmaga.jp/ym3/2015/2015-3.html)) (Raws: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/01/15/110000), [Comic DAYS](https://comic-days.com/episode/10834108156652934194)) 4. *BattleSexer SEISHIROU* by Kubo Yasuhisa ([Young Magazine the 3rd 2015 No. 4](https://magazine.yanmaga.jp/ym3/2015/2015-4.html)) (Raw: [Comic DAYS Blog](https://comic-days.com/blog/entry/3rd100/seishiro)) It's the 23rd century, an age of science and technology, and sex is no longer required to reproduce. However, humanity has not forgotten sex! Sex has evolved to become a form of martial arts, and those who practice it are known throughout the world as BattleSexers! 5. *New Oni Legend - Any Crying Children Here‽* by Oshikiri Rensuke ([Young Magazine the 3rd 2015 No. 5](https://magazine.yanmaga.jp/ym3/2015/2015-5.html)) (Raw: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/01/30/110000)) 6. *Simple Z ~The Perfect Detective Kanta's First And Last Case~* by Suzuki Nakaba ([Young Magazine the 3rd 2015 No. 6](https://magazine.yanmaga.jp/ym3/2015/2015-6.html)) (Raw: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/01/18/110000)) 7. *Mosaic!!* by Umeda Abi ([Young Magazine the 3rd 2015 No. 6](https://magazine.yanmaga.jp/ym3/2015/2015-6.html)) (Raw: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/01/22/110000)) 8. *Wish For Sasa ★* by Yamamoto Souichirou ([Young Magazine the 3rd 2015 No. 7](https://magazine.yanmaga.jp/ym3/2015/2015-7.html)) - **Included in [Love Letter -Yamamoto Souichirou Short Story Collection-](https://mangadex.org/title/75de5e90-9621-4c0f-899f-056a90ef0061)** 9. *BOWWOW Providence ―An Alternative View Of The Eight Dog Chronicles―* by Segawa Masaki ([Young Magazine the 3rd 2015 No. 8](https://magazine.yanmaga.jp/ym3/2015/2015-8.html)) (Raw: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/02/01/110000)) 10. *The Very Delish Restaurant Kirishima!!* by Seo Kouji ([Young Magazine the 3rd 2015 No. 9](https://magazine.yanmaga.jp/ym3/2015/2015-9.html)) (Raws: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/01/08/110000), [Twitter](https://x.com/seokouji/status/1176861725779316736)) 11. *Sacrificial Shrine Maiden Touya* by Yoshimura Kana ([Young Magazine the 3rd 2015 No. 12](https://magazine.yanmaga.jp/ym3/2015/2015-12.html)) (Raws: [Comic DAYS Blog](https://comic-days.com/blog/entry/2018/01/25/110000), [Comic DAYS](https://comic-days.com/episode/10834108156637582736))

A special bonus comic released with the final volume of Princess Lucia. It brings together characters from most of Seo Kouji's published works.

Shin'ichi Nagakawa and Yuuki Sanada are both involved in an accident and die together. However, they are given a chance to live again. God lets them live for seven more days, but after their time is up, one of them must die again. Oh, and there's one more catch. God decrees that their lives will be shared, including emotions (guilt) and physical sensations (pain). They are also unable to leave one another's side. What will happen during those seven days? Originally a oneshot in 1996, included in the Love Letter collection.

Special collaboration between Seo Kouji (Fuuka), Hiroyuki (Aho Girl), Yoshikawa Miki (Yamada-kun to 7-nin no Majo) and Katsuki Hikaru (Baby Steps)

Special collaboration between mangaka of Weekly Shounen Magazine

Okita Tsurugi is a 3rd grader who's father passed away when he was a young child and he lives with his mother. His father was a famous tennis player and Tsurugi yearns to play tennis too and joins a tennis club and meets a girl, Sanada, who's a tennis prodigy.

Ogata Natsuki is a talented basketball player, with aspirations to play for Fujiwara Academy, which is renowned for its basketball team. However things do not go smoothly for Ogata Natsuki as he's forced to make tough decisions. Will we see Ogata rise to the top or rue his missed chances?

In a world driven by fictionalized friendship, courtesy of the program named "real account", the table suddenly turns, and the cybernetic world turns real! how will they survive?

Koizumi Yuta is a 14 year old boy who has quite a bit of a problem. The princess of the demon world, Lucia, has to procreate with him. That child would have the ability to engulf the entire world for 7 whole days. Mikamoto El and Kasukabe Rie are the two angels assigned to make sure that doesn't happen. Kasukabe Rie happens to be the girl he likes. Just how is he going to survive this ordeal? Note: Volume 1 included Chapter 0 which was the one-shot & prequel to the series that was published a year prior