The Zero-Sum Original Anthology Series features themed oneshots from various mangaka that publish in Ichijinsha's Zero-Sum and Ward magazines. Volume 10 theme: Conflict and Secret Societies. 1. Ranpo-sensei Laughs Like This by Takayama Shinobu 2. Secret Mission by Saeki Yashiro 3. Fang by Kawazoe Mariko & Nakamura Sachiko 4. Black Swastika Army by Katagiri Ikumi 5. Mushroom and Kappa - A Fierce Conflict of Honourable Men by Magami Guriko 6. Boys’ Cavalry by Kayase Shiki 7. Rindou by Asada Yasuka 8. Hideout by Sekka 9. Un Orso by Mizuhara Kenta 10. Be Enthusiastic, Father! by Inui Miku 11. A Promise by Seno Tatsune & Takamiya Aya 12. Let’s Meet at the Secret Society by Kinoshita Sakura 13. Will O' the Wisp by Kouzuki Leo 14. The Village of the Secret Agreement by Ueda Shinshu 15. At the End of an Endless Desire by Akai Higasa 16. Demon King Time by Kanou Ruri 17. Messenger of Justice ★ Moonlight Organisation by Usaki Hitomi