Best Anime Openings and Endings of Summer 2026: Ultimate Theme Song Rankings

Okay, real talk. Summer 2026 was stacked. Between the franchise comebacks and the slice-of-life that snuck up on everybody, July through September felt like being force-fed bangers on a loop. And the music was a huge part of why. These OPs and EDs didn’t just fill the first ninety seconds of an episode. They ate the timeline, took over Reddit threads, and turned MyAnimeList into a therapy group. Some of us watched the creditless versions more than the actual episodes. No shame.

Now that the dust has settled and the Anime Corner seasonal polls are in, let’s go through the winners and figure out why they hit so hard.

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The Openings That Had Us Pressing Replay

1. “Stella” by SEKAI NO OWARI: You and I Are Polar Opposites Season 2

Nobody had “gentle romance beats the action heavyweights” on their bingo card, and yet here we are. Stella took the number one spot with a comfortable lead, and I’m not mad about it at all.

The song is whimsical and a little theatrical, with an indie-pop pulse that sneaks up on you. Then the chorus lifts off and suddenly you’re tearing up over two high schoolers who can barely talk to each other. Suzuki’s all-sparkles energy against Tani’s quiet, careful presence is the whole show, and the track gets that. Lapin Track’s animation backs it up with bold color blocking and split-screen tricks that mirror the “opposites” gimmick without feeling cheesy.

My take: this is the rare OP that makes the series feel warmer before the episode even starts. It’s cozy, and it’s a certified streaming monster.

2. “Hikari no Uta” by Yuiko Ohara: Mushoku Tensei: Jobless Reincarnation Season 3

Second place, and honestly it deserved a recount. Yuiko Ohara has basically become the voice of Rudeus’s whole saga at this point. Hikari no Uta skips the flashy pop route for acoustic textures, sweeping strings and vocals so airy they feel like wind through a valley.

It plays less like an anime opening and more like a fantasy ballad that wandered out of the world itself. Studio Bind pairs it with wide, sweeping landscapes and visibly older characters, so you feel the years piling up on them. MAL threads kept saying it feels like the series’ actual soul, and yeah, I’m not going to argue.

3. “I-BULL” by jo0ji: BLEACH: Thousand-Year Blood War, The Calamity

If Stella is a warm blanket, I-BULL is a lit match. The moment it dropped in July, the internet lost its collective mind. The gritty vocals, the relentless bassline and the structure that keeps zigging when you expect a zag all match the apocalyptic dread of the Quincy war’s final stretch.

Pierrot Films went full avant-garde here: high-contrast colors, symbolic imagery around Ichigo and the Sternritter, and shots that look like they were designed by someone who hasn’t slept in a week (compliment). Western reaction channels couldn’t stop praising how far it strays from the usual shonen rock template. Millions of views in days, no surprise.

4. “Why? RED induction” by MYTH & ROID: Saga of Tanya the Evil Season 2

MYTH & ROID returned to do what they do best, which is weaponize synths and guitars until your speakers file a complaint. The track is fast and aggressive, with bilingual vocals that sound meticulously precise, like the song itself is following a battle plan.

The visuals lean into war-room energy: military imagery, maps, and little psychological jabs at Tanya’s ongoing feud with Being X. Reddit also nerded out over the lyrics and that 130 BPM drive, which suits Studio Nut’s brutal dogfights perfectly. If you need to feel like a ruthless strategist while doing the dishes, this is your song.

5. “TACTIC” by Daoko: That Time I Got Reincarnated as a Slime Season 4

This was the swerve of the season. Daoko, with Giga and TeddyLoid handling the arrangement, brought in a reggaeton-flavored electronic beat wrapped in glitchy sci-fi synths. It sounds nothing like a typical isekai fantasy opening, and that’s exactly why it works. Her rapid-fire delivery keeps the energy twitchy and fun, and the animation is slick and kinetic enough that AMV editors have been feasting all summer.

Is it the most emotional pick on this list? No. Is it the most fun? Probably.

The Endings That Quietly Destroyed Us

Openings get the hype, but endings get the feelings. Here’s where Summer 2026 really did damage.

1. “Rasen” by 9Lana: BLEACH: TYBW, The Calamity

Bleach went home with the top OP and the top ED category, which is just greedy. Rasen pulled in more than 14 percent of the vote, and listening to it, you get why. It starts quiet, built on a somber piano, and 9Lana’s voice cracks in exactly the right places before the whole thing detonates into a tragic rock chorus.

The visuals are minimalist and gorgeous, a hushed memorial to the fallen, and they carry the real weight of what this war costs the Soul Society. YouTube reaction videos basically unanimously called it one of the most devastating endings in the franchise’s history. Keep tissues nearby.

2. “Inori, Owareba” by Mika Nakashima: Mushoku Tensei Season 3

Second place by a hair, and I will personally fight anyone who says it didn’t hit. Written alongside the band hitorie, this one is told from Eris’s point of view, and you can feel the loyalty, the grind and the long ache of waiting for Rudeus. Nakashima’s mature, weathered voice adds an almost nostalgic gravity, like hearing a memory sing.

The visuals are bright but bittersweet, tracing how reckless kids grew into battle-worn adults. It’s the kind of ending where the credits roll and you just sit there for a minute.

3. “Shooting Star (Houkiboshi)” by Rokudenashi: Though I Am an Inept Villainess

The sleeper pick. This slow-burn acoustic ballad suits the show’s body-swap intrigue and its quiet themes of isolation and resilience. The verses are delicate, then the hook opens up into something sweeping that lingers long after a cliffhanger. Honestly, a perfect cooldown track after the show throws another twist at you.

4. “Weiter! Weiter!” by Tanya Degurechaff (Aoi Yuuki): Saga of Tanya the Evil Season 2

I need everyone to appreciate how committed this is. Aoi Yuuki performs the whole thing in character, delivering maniacal laughter, tyrannical declarations and marching orders over a heavy-metal-tinged military march. It’s the spiritual successor to the first season’s legendary ED, and it’s absurdly theatrical in the best way. The gritty propaganda-poster visuals sell the Empire’s youngest major as a terrifying little menace. It’s pure character-song chaos, and I love it.

What This Season Told Us About Anime Music

Step back from the individual songs and the big picture is pretty exciting.

• Genre walls are crumbling. Reggaeton-flavored electro (TACTIC), alt rock (I-BULL), fantasy orchestration (Hikari no Uta) and indie pop (Stella) all landed in the same season. The old “it’s all J-rock and idol pop” stereotype is officially dead.
• Studios treat OP/ED like real cinema now. Pierrot Films, Science SARU and Studio Bind aren’t stringing together character-intro montages anymore. They’re using color theory, metaphor and high-frame-rate choreography cut to the beat.
• Streaming numbers prove it works. When the music and the animation actually collaborate, the clips travel on their own. Spotify plays, YouTube views and AMV waves all follow.

So What Should You Queue First?

Depends on your mood:

1. Need to feel something warm? Stella.
2. Want to cry about a fantasy world? Hikari no Uta, then Inori, Owareba.
3. Need adrenaline? I-BULL and Why? RED induction back to back.
4. Want to be devastated at 2 a.m.? Rasen. You’ve been warned.
5. Want pure goofy chaos? TACTIC and Weiter! Weiter!

Summer 2026 gave us a whole mood board of sounds, and I’m still not over it. Drop your own ranking in the comments, because I know somebody out there is about to defend the “wrong” pick with their whole chest.