When reserved college student Aiko discovers a mysterious spool of silver thread at a flea market, she's warned, "This thread binds souls that need each other. But unraveling it comes at a great cost." Unable to resist, she embroiders a lotus into her scarf, summoning Kaito, a charming man who claims to be who she needs, her protector from the sinister Black Lotus Syndicate, a shadowy group that seeks to exploit her newfound power for their own gain.
As danger looms, Aiko must determine whether Kaito is her guardian or has his own hidden motives. In a world where embroidery holds the key to destiny, will Aiko weave her own fate or become entangled in a web of deceit?