Ikoku Nikki (違国日記, "Diary of a Strange Land") is a Japanese manga series written and illustrated by Tomoko Yamashita.

[10] In June 2023, it was announced that the series would receive a live-action film adaptation, directed by Natsuki Seta and starring Yui Aragaki as Makio Kōdai.

[22][1] For the film, Eriko Hashimoto [ja] wrote and composed the in-story song "Asa no Uta" (あさのうた, lit.

It will be produced by Shuka and directed by Miyuki Oshiro, with scripts written by Kōhei Kiyasu, characters designed by Kenji Hayama, and music composed by Kensuke Ushio.

[32] The series topped the 2023 "Book of the Year" list by Da Vinci magazine.