[2026] Spring Anime Theme and Insert Songs (April Cour) | A Roundup of Must-Listen Tracks!

When flyingVaundy

TV Anime “Kyōkai no Tsugai” Non-Credit Opening Movie | Vaundy “When I Fly”

When flying

A song crafted by singer-songwriter Vaundy, who draws attention with his genre-defying musicality and unique sensibility.

Released as a digital single in April 2026, it serves as the opening theme for the TV anime “Twin in the Yokai Realm.” Created as a counterpart to the ending theme sung by yama, this piece portrays the very moment the two protagonists set off on their journey.

The lyrics are striking for their conceptual word choices, which bring to the surface a complex emotional state where the will to move forward intersects with anxiety.

The uplifting sound vividly expresses both inner turbulence and the power to press on.

It’s a deeply narrative-linked track that offers support to those who want to take a new step or are being pushed to make a decision despite their doubts.

Anthem of the Wind feat. suis from YorushikaEVE

[Creditless OP] TV Anime “Witch Hat Atelier” Creditless Opening Video | Eve “Kaze no Anthem (Anthem of the Wind)” feat. suis from Yorushika

Wind's Anthem feat. suis from Yorushika (Wind’s Anthem) – Eve Music Video

“Wind Anthem feat.

suis from Yorushika” is an exhilarating rock tune that colors a tale of magic and growth.

Crafted by Eve, it’s a digital single released in April 2026 as the opening theme for the TV anime Atelier of Witch Hat.

Featuring guest vocals by Yorushika’s suis, the track evolves into a dramatic piece where two voices resonate—as if wishing for the same dawn from opposite places.

Its expansive sound, filled with the will to move toward the future, feels like a push on the back for a new spring departure or whenever you want to take on a challenge.

bubble(s)Yorushika

"LIAR GAME" OP / TV Anime Opening Theme: Yorushika "Abuku"

Yorushika – Abuku (OFFICIAL VIDEO)

This work exudes a presence as fleeting as bubbles that surface on the water only to vanish.

It’s a song by Yorushika, known for richly narrative music and strikingly beautiful lyrics.

The lyrics, themed around repeating the same words, evoke a curious sensation of circling the same thoughts over and over.

Chosen as the opening theme for the TV anime “LIAR GAME,” which began airing in April 2026, it marks a fitting tie-in to celebrate 20 years since the original manga began serialization.

The anime’s tense, psychological atmosphere pairs perfectly with the song’s clear, translucent vocals.

It’s a number I highly recommend for moments when the repetition of daily life leaves you a bit weary, or when you want to pause and take a fresh look at yourself.

pipe dreamAoi Eiru

TV Anime 'That Time I Got Reincarnated as a Slime Season 4' PV 1st Trailer [Broadcast begins April 3, 2026!]

Eir Aoi “Esoragoto” MUSIC VIDEO (TV anime “That Time I Got Reincarnated as a Slime Season 4” opening theme song)

A high-octane, fast-paced rock sound that stirs the listener’s heart—this is a fiery number.

Sung by Eir Aoi, the track is included on a double tie-in CD single released in April 2026 and was selected as the opening theme for the anime That Time I Got Reincarnated as a Slime Season 4.

Its grand arrangement, grounded in a band-driven sound, pairs beautifully with her soaring high notes that combine clarity and power.

The song carries a message about turning a seemingly impossible future into reality through encounters with comrades and steadfast convictions.

It’s an anime song you’ll want to hear when you need the courage to step into a new environment or the resolve to overcome hardships!

When buds breakyonige

Complete Opening Movie | TV Anime “Kamiina Botan: Her Drunken Figure Is a Lily Flower”

yonige “When It Sprouts” official music video

How about a rock number that blends springlike warmth with a refreshing feel? “Mebuku Toki” by yonige, a band from Neyagawa, Osaka Prefecture, was released in advance in April 2026.

It was written as the opening theme for the TV anime “Kamiina Botan: Yoeru Sugata wa Yuri no Hana.” Centered on yonige’s characteristically gritty guitar and bass, the song carefully depicts awkward, down-to-earth emotions.

The lyrics, infused with the hesitation that arises when people draw closer and the wavering that comes with trying to convey caring words to someone, may be close to the honest feelings that spill out in everyday life.

In this season when new relationships begin, it’s sure to resonate with that sensation of your heart moving in a direction different from the future you’d planned.

sparkKitanitatsuya

TV Anime “Japan Sangoku” Creditless Opening Video | Tatsuya Kitani “Hidane (Kindling)”

HIDANE / Tatsuya Kitani – HIDANE (Dancing Ember) / Tatsuya Kitani

A high-energy anime theme song where a driving sense of speed intertwines exquisitely with a distinctly Japanese flair! Created by singer-songwriter Tatsuya Kitani, it began advance streaming in April 2026.

Selected as the opening theme for the TV anime “Nihon Sangoku,” the track masterfully fuses weighty word choices that incorporate archaic Japanese with a powerful rock sound.

It carries a passionate message about turning even adversity and friction into fuel to move forward.

You can feel his continued evolution since the release of his 2024 album “ROUNDABOUT,” as he keeps up a vigorous pace of activity.

Perfect for anyone who wants to psych themselves up for a new challenge.

Immerse yourself in it alongside the world of this war chronicle story.

charmer / smooth talkerKuwata Keisuke

Non-credit opening video of the TV anime “Akanebanashi” | Keisuke Kuwata “Hitotatarashi / Hitotatarashi”

Keisuke Kuwata – Hitotatarashi [Anime Lyric Video]

Spring is the season when new stories begin, and it makes you feel a little excited, doesn’t it? This song, created by Keisuke Kuwata, one of Japan’s most renowned singer-songwriters, has been chosen as the opening theme for the anime “Akane-banashi,” which begins airing in April 2026.

Its dynamic sound, infused with elements of Group Sounds and folk music, is especially captivating.

The lyrics, which accompany the rakugo-themed story and vividly depict the protagonist facing hardships with elegant wording, give powerful encouragement to listeners.

It’s a track brimming with propulsive energy—one we especially hope those encountering obstacles in a new environment or standing before a major challenge will listen to.