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Sei Ryuujin’s Most Popular Songs Ranking [2026]

Ryujin Kiyoshi is a singer-songwriter who, as a high school student, once won TEENS ROCK IN HITACHINAKA and even performed at ROCK IN JAPAN that same year.

He’s active not only in his own music career but also in producing idol groups, showcasing a wide range of activities.

He continues to create songs that aren’t bound to a single style, incorporating a variety of musical sensibilities.

Even so, what remains unchanged about his appeal is surely his moving vocals and the messages that strike straight at the heart.

In this article, we’ll introduce his songs in a ranking format—so be sure to experience his charm with your own ears.

Sei Ryuujin’s Most Popular Songs Ranking [2026]

Boy and Girl Love SongKiyoshi Ryujin8rank/position

There are tons of cute girls in this world—really, that’s true.

Sometimes that can be encouraging, and other times it only highlights the words “it has to be you.” Kiyoshi Ryujin’s way of singing tears at my chest.

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far; distant; by farKiyoshi Ryujin9rank/position

Haruka paints a grand, expansive world.

The song was created by Ryujin Kiyoshi, who is active as a singer-songwriter and music producer.

It serves as the opening theme for the second cour of the anime Dr.

STONE NEW WORLD and is crafted as a ballad that reflects the epic story.

Because it sings about encounters and farewells—experiences everyone goes through—both viewers of the anime and those who haven’t seen it can relate.

The ultra high-tone vocals are also a major highlight.

yamamoto
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Youth is beautiful.Kiyoshi Ryujin10rank/position

Ryuji Kiyoshi “Youth Is Beautiful” MUSIC VIDEO
Youth is beautiful.Kiyoshi Ryujin

Isn’t it thanks to your teacher that you were able to spend your youth filled with so many memories—joyful events and frustrating moments alike? For such a teacher, send Ryuujin Sei’s “Seishun wa Utsukushii” (“Youth Is Beautiful”).

It’s a track from the 2019 album REIWA, and its lyrics—halting yet heartfelt—really resonate.

The music video is set in a school and even shows students performing the song as a chorus.

Sing it at your graduation ceremony, and your feelings are sure to reach your teacher!

Hamada Takuya
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