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About the song
"Rashisa (らしさ)" is a song by Official HIGE DANdism used as the first ending theme for Hyakuemu. (100 Meters; ひゃくえむ。), a 2025 anime from Rock'n Roll Mountain.
It was released on August 6, 2025, as the single "Rashisa - Single". The release carried the copyright line ℗ 2025 IRORI Records/PONY CANYON INC.