[2026] Summary of Opening, Ending, and Insert Songs from That Time I Got Reincarnated as a Slime

UtopiaTRUE

Utopia (Movie size)

This piece was created as a blue love song that resonates with a world set on an azure sea.

Sung by TRUE, it’s a dramatic pop song brimming with aching sadness and crystalline clarity.

Chosen as the theme song for the anime film That Time I Got Reincarnated as a Slime the Movie: Azure Sea of Tears, released in February 2026, it was also issued that month as the first track on the single “Azure Sea’s Shimmer.” This marks her sixth collaboration with the series, and the long-nurtured trust between them breathes beautifully within its cinematic melody.

The result evokes a yearning that feels almost within reach yet remains distant, and a prayer for a world she wants to protect.

It’s the perfect number for those who want to experience deep emotion on a big theater screen, or to surrender themselves to a quiet passion.

Nameless StoryTerashima Takuma

Takuma Terashima / “Nameless Story” Music Clip (“That Time I Got Reincarnated as a Slime” OP)

This song brilliantly captures the exhilarating feeling of gaining a new role in another world and boldly forging a path through the unknown! Its dramatic, fast-paced rock sound and theme of facing straight ahead will set your heart ablaze.

It served as the opening theme for Season 1 of the anime “That Time I Got Reincarnated as a Slime,” with lyrics written by Takuma Terashima—who is also active as a voice actor—and was released in October 2018 as his eighth single.

This track is perfect when you need the courage to dive into unfamiliar territory.

Listening to its uplifting melody will surely give you that push to step forward into the future!

STORYSEEKERSTEREO DIVE FOUNDATION

STORYSEEKER (TV anime “That Time I Got Reincarnated as a Slime” Season 2 ending theme) - STEREO DIVE FOUNDATION – [Official Video]

An electro tune that opens with flowing piano tones and then surges forward with a bold, marching beat.

The lyrics stylishly depict the sense of loss when something precious is gone and the moments when life forces you to make a choice.

This track was used as the ending theme for Part 1 of the anime “That Time I Got Reincarnated as a Slime” Season 2.

It’s a single from STEREO DIVE FOUNDATION, the solo project of R・O・N, released in February 2021.

It was also included on the album “STEREO DIVE 02,” released in April 2022.

The song delivers a refreshing finish that conveys a sense of narrative depth.

Perfect for quietly facing your emotions and taking your next step forward.

Renaselle SerenadeMomoiro Kurōbā Zetto

Momoclo [MV] Renacer Serenade -MUSIC VIDEO- (TV Anime “That Time I Got Reincarnated as a Slime” Season 3 Opening Theme, Part 2)

A glamorous, dramatic anime-pop track that blends a bouncing beat with a light, airy melody line.

Even while hurt, the determination to keep moving forward toward the future is woven throughout the song.

Chosen as the opening theme for the TV anime That Time I Got Reincarnated as a Slime Season 3, this piece was released by Momoiro Clover Z in August 2024 as their 22nd single.

It also drew attention for having lyrics and composition by Motoki Ohmori of Mrs.

GREEN APPLE.

The group’s signature euphoria meshes perfectly with the story’s grand sense of scale.

It’s a must-listen for anyone looking to take on something new and soak up some positive energy.

Like FlamesMindaRyn

MindaRyn – Like Flames (“That Time I Got Reincarnated as a Slime” Opening Theme Song) | Music Video

This anime song, bursting with a sense of speed and rock energy, sets your heart ablaze.

Sung by the trilingual artist MindaRyn, its blend of English and Japanese is especially captivating.

Her powerful vocals are overwhelming, as if voicing the protagonist’s cry to ignite their fighting spirit for their friends.

Chosen as the opening theme for Part 2 of the TV anime “That Time I Got Reincarnated as a Slime” Season 2, it was released as her second single in August 2021.

It was also included on her album “My Journey,” released in December 2022.

With over 20 million views on video platforms, it’s beloved by fans worldwide.

It’s the perfect track when you need the courage to face hardships or want to fire yourself up and boost your energy!

Another colonyTRUE

[TRUE] "Another colony" Music Video (TV anime "That Time I Got Reincarnated as a Slime" ending theme song)

An energetic number that expresses the creation of a new community in another world and the will to move toward tomorrow.

TRUE’s powerful vocals and the exhilarating rock sound resonate deeply.

It vividly portrays the characters as they press forward in pursuit of their ideals.

This track was used as the ending theme for the first cour of the first season of the anime “That Time I Got Reincarnated as a Slime” and was released as a single in November 2018.

It was also included on the 2021 album “Kotoba Asobi” and remains a staple at live shows to this day.

It’s the perfect anison for those who want to start a new challenge or find a place where they belong.

Experience the thrill of stepping into the unknown together with this song.

StorytellerTRUE

[TRUE] “Storyteller” Music Video (TV anime “That Time I Got Reincarnated as a Slime” Season 2 Opening Theme)

Isekai reincarnation stories really capture a lot of hearts, don’t they? This song was chosen as the opening theme for Part 1 of the anime That Time I Got Reincarnated as a Slime Season 2.

Created by TRUE, a singer who also excels as a lyricist, it’s a pop-rock number that portrays bonds with companions and a forward-looking growth that carves out one’s destiny.

Released in January 2021 as her 16th single, it was later included on the album Kotoba Asobi.

Its grand, exhilarating melody truly evokes the feeling of the start of an adventure! The powerful, hope-filled vocals are inspiring too—an anime song that gives you courage.

It’s a great track to listen to when you want to take on something new or boost your spirits.