The pre-broadcast special visual, the third trailer, and the synopsis and preview stills for Episode 1 of the TV anime Nippon Sangoku The Three Nations of the Crimson Sun have been released. The ending theme for the series has been titled "Chikai" (The Vow), a newly written track by singer-songwriter Leina, which can be heard in the latest trailer. Furthermore, it was announced that Kenyu Horiuchi, Shuichiro Umeda, Shunsuke Sakuya, and Ayumu Murase will join the cast. The series is set to begin its world-earliest streaming on Prime Video on April 5, 2026.
![[Photos/Images] Nippon Sangoku The Three Nations of the Crimson Sun Anime ED Theme to be "Chikai" by Leina! Additional Cast Including Ayumu Murase, Episode 1 Synopsis, and Preview Stills Released 1st](https://times-abema.ismcdn.jp/mwimgs/a/6/724w/img_a61ae2863330174dc5b1051645392c2723595334.jpg)
