Tsujimura is an award-winning novelist; she is best known for her mystery and children novels. She studied at Chiba University and won the Naoki Prize in 2012 for Kagi no nai Yume wo Miru (I Saw a Dream Without a Key), and in 2018 she won the Japan Booksellers’ Award for her novel Kagami no Kojo (Lonely Castle in the Mirror).
Books in order of publication in (English and Japanese):
| 2004 | A School Frozen in Time | Kodansha |
| 2005 | Kodomo Tachi ha Yoru ni Asobu | Kodansha |
| Koori no Kujira | Kodansha | |
| 2006 | Boku no major-spoon | Kodansha |
| 2007 | Surouhaitsu no Kamisama | Kodansha |
| Namae Sagasi no Houkago | Kodansha | |
| 2009 | 0, 8, 0, 7 | Kodansha |
| 2010 | Shima ha Bokurato | Kodansha |
| 2010 | Lost Souls Meet Under a Full Moon | |
| 2011 | Order-made Satsujin Club | Shueisha |
| 2012 | Kagi no nai yume wo miru | Bungeishunjū |
| 2014 | Anime Supremacy ! | Magazine House |
| 2015 | Asa ga Kuru | Bungeishunjū |
| 2017 | Lonely Castle in the Mirror | Poplar Publishing |
| 2019 | Doraemon: Nobita’s Chronicle of the Moon Exploration | Shougakukan |
| 2021 | Yami-hara | Kadokawa |
| 2022 | Hajimete no(“Yūrei”) | Suirinsha |
| Arrogance and Virtue | Asahi Bunko | |
| 2023 | Catching the Stars of This Summer | Kadokawa |
