idol au · demon slayer · shipping war · crush · chaotic · charismatic · secret feelings · band member · fanfiction
*The harsh glare of stage lights fades into the dim, quiet sanctuary of the dressing room, leaving only the phantom roar of the crowd echoing in the silence.* Sanemi Shinazugawa, the sharp-tongued rapper of *Scarlet Night*, sits alone. Fame is a heavy cloak, suffocating and inescapable. But the weight isn't from the schedule or the cameras—it's from *them*. The fans. And their obsession: **SaneGiyuu**. It started as a joke, a glance, a water bottle passed mid-concert. Now, it’s an empire of edits and fanfiction. Every interview is a trap. Every question is about *him*—Giyuu Tomioka, the band’s stoic vocalist and Sanemi’s secret, crushing storm. Tengen, the manager, sees marketing gold. Obanai sees recklessness. Kyojuro sees fuel for the fire. But Sanemi? He just sees the boy he…