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[Nostalgic & Latest] A Special Feature on Anime Songs Recommended for People in Their 20s

Anime, a cornerstone of Japanese culture, is beloved not only by children but also by adults, and it’s highly regarded overseas too! Along with anime itself, the theme songs that play during openings and endings—known as anison—are appreciated not just in Japan but around the world.

So this time, we’ve gathered a wide selection of anison, from nostalgic tracks recommended for people in their 20s to the latest hits! You’ll find memorable songs you listened to as a child as well as popular new tracks, so be sure to read to the end! You might even find one of your favorite songs or a tune that brings back memories.

Now, let’s get started!

[Nostalgic & New] A Major Anime Song Feature Recommended for People in Their 20s (91–100)

ironyClariS

ClariS『irony -season 02-』by ClariS 10th Anniversary Precious LIVE〜 Gift 〜
ironyClariS

ClariS’s debut single “irony” became a work that stayed in many people’s hearts.

Gaining popularity through its tie-in with the anime “Ore no Imouto ga Konna ni Kawaii Wake ga Nai” (Oreimo), the song’s lyrics, which express the feelings of teenage girls, resonated with a wide audience.

Since its release in October 2010, it has maintained a high position on the Oricon charts.

The transparent, pure vocals of the two members of ClariS are particularly memorable.

It’s a track we especially recommend to anyone who’s struggling to be honest with their feelings.

Crazy RainbowTakkī & Tsubasa

One Piece OP 8 – Crazy Rainbow Lyrics
Crazy RainbowTakkī & Tsubasa

It feels like the acceleration is painting a vivid rainbow! The duo Tackey & Tsubasa, formed by Hideaki Takizawa and Tsubasa Imai, released this song as their eighth single in 2007.

It was the opening theme for the beloved anime One Piece.

With a powerful message that makes you feel like you can break through even the reality before your eyes, and an up-tempo sound that signals the start of an adventure, it’s absolutely thrilling! The song reached No.

1 on the Oricon Weekly Chart, and in episode 303 of the anime, the two even make a humorous cameo within the story.

It’s the perfect number for taking a new step with your friends or when you want to lift your spirits.

[Nostalgic & New] A Huge Anime Song Special for People in Their 20s (101–110)

Crimson Lotus FlowerLiSA

LiSA “Gurenge” -MUSIC CLIP YouTube EDIT ver.-
Crimson Lotus FlowerLiSA

This is the 15th single by female singer LiSA, used as the theme song for the TV anime Demon Slayer: Kimetsu no Yaiba.

The song’s structure is designed to maximize the impact of the chorus by creating strong dynamics—contrasting the intense rock sound of the A section and chorus with a quieter B section.

In the chorus, simple chord progressions are interspersed with occasional diminished chords, striking a balance between accessibility and a memorable hook.

On the Oricon charts, it achieved both the “last No.

1 of the Heisei era” and the “first No.

1 of the Reiwa era,” setting records that transcend the typical scope of anime songs.

spiralLONGMAN

LONGMAN 'Spiral' Music Video (TV Anime 'Mushoku Tensei II: Jobless Reincarnation' Opening Theme)
spiralLONGMAN

LONGMAN is a three-piece band with male-and-female twin vocals that made their major-label debut in 2019.

They’ve provided numerous anime theme and tie-in songs, and their track “spiral” is used as the opening theme for the anime Mushoku Tensei II: Jobless Reincarnation.

Stories about once having a dream that ultimately didn’t come true are everywhere.

This song resonates like a declaration from one’s present, grown-up self to their past self: the dream didn’t come true, but here’s how I’ll live and move forward from now on.

HOWLINGabingdon boys school

abingdon boys school 『HOWLING』
HOWLINGabingdon boys school

It’s the theme song for the TV anime Darker than Black: The Black Contractor.

abingdon boys school is a band formed around Takanori Nishikawa, known for T.M.Revolution, and their music resonates with a weight that reflects the members’ experience.

In keeping with the work, the song carries a slightly dark atmosphere while delivering a sense of exhilarating speed—it’s an unrelentingly cool track.

Angel’s RestOkui Masami

(For Work) Angel's Rest ~ Masami Okui (Subscribe)
Angel’s RestOkui Masami

Yohko Yamamoto, Full Ahead! is a science fiction novel by Taku Shōji, which was adapted into an OVA and a TV anime.

The TV anime’s opening theme is Tenshi no Kyūsoku, sung by Masami Okui, which reached No.

20 on the Oricon charts.

W-InfinityMiemono Hitomi / Kageyama Hironobu

Gear Fighter Dendoh is a robot anime that aired on the TV Tokyo network, telling the story of the GEAR Fighter Dendoh piloted by Ginga Izumo and Hokuto Kusanagi as they battle the Machine Empire Galfa.

The opening theme, “W-Infinity,” won the Theme Song Award at the 6th Animation Kobe.