Inner Journey : Digital Release of “Owaranai Yoru no Mamorikata (How to Protect the Never-Ending Night)”, the Ending Theme for the TV Anime “The World’s Strongest Rearguard: Labyrinth Country’s Novice Seeker” , Now Available.

2026/07/072026/07/07 da

Inner Journey, the gentle rock band that made its major-label debut in May, has released its second major single, ” Owaranai Yoru no Mamorikata (How to Protect the Never-Ending Night),” on digital platforms.

Known for creating music that offers listeners a sense of comfort—like a protective charm—Inner Journey continues to captivate audiences with its heartfelt sound. The new song has been selected as the ending theme for the TV anime” The World’s Strongest Rearguard: Labyrinth Country’s Novice Seeker”, which premieres on July 5, marking the band’s first-ever anime theme song.

Non-credit ending video

Based on the hit novel series with more than 2.6 million copies in circulation, the anime follows Arihito, who is reincarnated into the Labyrinth Country and embarks on a fantasy adventure as the ultimate support-class “Rearguard,” possessing exceptional offensive, defensive, and healing abilities. Alongside a cast of distinctive heroines, he grows stronger through the challenges of his new world.

While writing the ending theme, vocalist and songwriter Sara Kamoshita drew inspiration from the original story. She was particularly moved by Arihito’s unwavering determination and the sincerity with which he supports and stands by his companions, despite being thrust into an unfamiliar world. Inspired by his inner strength and the timeless image of the night sky, she composed “Owaranai Yoru no Mamorikata (How to Protect the Never-Ending Night)” specifically for the series.

Release Information

Owaranai Yoru no Mamorikata (How Protect the Never-Ending Night)

Streaming https://innerjourney.lnk.to/owaranaiyoru

The World’s Strongest Rearguard: Labyrinth Country’s Novice Seeker

website：https://strongestrearguard-anime.com

YouTube :

Inner Journey profile

©笑子

A rock band featuring Sara Kamoshita (Vocals & Guitar: Lyrics & Composition) and Shu Honda (Guitar: Arrangements). Formed by high school classmates. Their soothing sound gently envelops the listener’s heart. Their high musicality has caught the attention of creators across various fields, leading them to perform numerous theme songs for movies and TV dramas. With successful overseas performances and high praise for their live shows, they are garnering attention from all quarters. They made their major-label debut on May 20, 2026, with King Records. “When You’re Tired, Take an Inner Journey.” A heartfelt talisman that embraces vulnerability and offers gentle support. Today, as always, we bring you gentle rock that brings a sense of reassurance whenever you listen.

[Web Site] https://innerjourney.fanpla.jp/

[YouTube] https://www.youtube.com/@inner_journey

[Instagram] https://www.instagram.com/innerjourney.band/

[X] https://x.com/innerjourney_?s=20

[TikTok] https://www.tiktok.com/@innerjourney_official

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