The Zero-Sum Original Anthology Series features themed oneshots from various mangaka that publish in Ichijinsha's Zero-Sum and Ward magazines. Volume 11 theme: Time Travel and Time Travelers.
- A Watch Seller Travels Through Time by Takayama Shinobu
- The Classroom Where He Is by Kumeta Natsuo
- The Person from the Future is Next to You by Mikawa Verno
- Time Travel by Gunjou
- The Professor and the Strange Love and Hate by Saeki Yashiro
- Samurais by Kari Erika
- Mushroom and Kappa - Time Travel Chapter by Magami Guriko
- Memento Mori by Tokitoh Kanade
- Darkness Future Design by Yoneyama Setsuko
- You Can’t Travel Through Dimensions by Kinoshita Sakura
- If Time by Takechi Keiko
- Nankai Loop? by Serikawa Mame
- Future Tedium Efforts Record by Mitsu Nanae
- When I Came Home, There was a Samurai by Igarashi Ran
- After Long Long Years by Sakura Maro