Itsuki and Akane, two high school sophomores pondering their future, decide to try performing a spell that is supposed to allow them to see their futures 10 years from now.
Itsuki is skeptical and doesn’t believe it’s possible, but egged on by Akane, she performs the spell anyway.
That night as Itsuki falls asleep, she suddenly finds herself in a world 10 years in the future, in an unfamiliar place, handcuffed to a stranger, and surrounded by flames.
Itsuki wakes up from her dream and after meeting up at school the next day, is told a shocking truth by Akane:
“Ten years from now, I will be dead…”
Is it really just a dream?
Why is Akane dead?
Determined to find answers, Itsuki travels back and forth to the future in her dreams searching for a happy ending for herself and Akane.