0X1=LOVESONG (Japanese Ver.)

A distorted guitar riff tears open the silence before the song even settles into its own skin — this is the defining quality of TXT's rock-era centerpiece, a track where alt-rock aggression and K-pop melodicism don't compromise so much as collide. The production leans heavily on overdriven guitars and a punching drum kit that surges in waves, pulling back into hushed, almost spoken verses before detonating in a chorus that feels physically large. In the Japanese version, the phonetic weight of the language sharpens the consonants, giving the vocal lines a harder edge than the Korean original. The lead vocalist carries the melody with a strained, yearning quality — not polished smoothness but the kind of voice that sounds like it's holding something painful together by willpower alone. Emotionally, the song orbits the paradox of feeling completely undeserving of love while being utterly consumed by it — the zero-times-one equation that should equal nothing, yet somehow becomes everything. There's a desperation here that teenagers recognize viscerally: the math of the heart never adds up the way it should. Culturally, this track announced TXT's willingness to step outside the sonic safety of mainstream idol pop and into territory informed by My Chemical Romance and early 2000s emo-punk. It belongs to the era when fourth-generation K-pop acts began treating rock instrumentation as identity rather than novelty. Reach for this one driving at night when the city lights blur and you're oscillating between hopelessness and something that feels dangerously close to hope.