Two sisters drift apart, then magic forces them to become the exact opposite of what they actually are, idols, public, untouchable. Neither knows the other has powers. Neither knows their magic has an expiration date. The show's real tension isn't saving the world; it's the moment they find out, and everything they've built as these fake versions of themselves has to collapse. That reunion, when it comes, costs them both something irreplaceable.
Two sisters drifting apart find themselves unexpectedly bound by a secret neither can share. When Fuu stumbles upon a mysterious spacecraft, she gains the ability to transform into her ideal adult self, complete with magical powers. That same moment, Rui experiences an identical awakening, unaware of what's happening to her sister. Both girls seize this chance to chase their dreams as idols, but there's a catch: their magic only lasts one year, and absolute secrecy is non-negotiable. Working in the same world without knowing the truth about each other, Fuu and Rui navigate rehearsals, performances, and the pressures of sudden fame. Their estrangement complicates everything. Trust becomes the real hurdle when the truth threatens to surface. Each sister guards her transformation jealously, fearing what will happen when the countdown ends and the magic fades. What begins as a solo fantasy becomes something far more complicated when family is involved. Can they rebuild what they've lost before time runs out?