In a world where "Echoes"—ancient spirit fragments—grant superhuman abilities to chosen teens, ordinary high schooler Miko Hayashi dies saving her little brother from a truck... only to wake up reincarnated in the body of a "cursed" student at Aether Academy, the elite school training Echo wielders to fight monstrous "Abyssal Rifts." Her new body comes with the forbidden Crimson Seal, a mark that lets her copy any Echo she sees—but at the cost of slowly corrupting her soul.
As Miko hides her secret while climbing the ranks, she clashes with the cold, genius top student Kael Voss, heir to the prestigious Voss clan and wielder of devastating shadow Echoes. Their rivalry sparks into something deeper when a massive Rift threatens the academy, forcing them to team up. Will Miko master her power without losing herself? Or will the seal consume her—and the boy who's starting to see past her facade?
Packed with explosive battles, magical school drama, teasing banter, heartfelt moments, and that addictive anime energy—perfect for serialization with episode-style chapters and cliffhanger endings!