yama to perform opening theme for anime Marronnier Kingdom no Shichinin no Kishi

The upcoming TV anime ‘Marronnier Kingdom no Shichinin no Kishi’, based on the manga by Nao Iwamoto, has announced its opening theme song, ‘Sayonara wa Iwanai’, performed by singer yama. The track was co-written and produced in collaboration with music producer Seiji Kameda.

In addition to the musical announcement, a second promotional video featuring the new theme has been released. The production also revealed additional voice cast members, including Miyuki Sakurai, Natsumi Fujiwara, Takehito Koyasu, Kazuyuki Okitsu, and Daisuke Namikawa.

The fantasy romance series is scheduled to begin broadcasting on NHK E-Tele starting October 3, 2026.