"Gurenge" by LiSA is the powerful, high-energy opening theme for Demon Slayer: Kimetsu no Yaiba that has become a global anthem for resilience, mirroring Tanjiro's journey to protect others. The track, which blends rock with emotive vocals, represents the "red lotus" blooming through adversity and has achieved massive commercial success. You can find the full, translated lyrics to the song online on various music and fan websites, which detail themes of strength in the face of tragedy.