Chronovale

In Ren's world, time is the only currency that matters. Every meal, every train ride, every home, and every supernatural ability is paid for with years stolen from your own lifespan. People learn to survive by spending carefully, because when your countdown reaches zero, there are no second chances. Nineteen-year-old Ren has accepted that reality. He works long hours to protect the only family he has left—his sixteen-year-old sister, Rina. Then she disappears. A mysterious voice leads him beneath the city, where he discovers a hidden world that should not exist and an impossible offer from a nameless Entity: Borrow now. Pay later. As Ren searches for his sister, he begins uncovering cracks in the lifespan system that humanity has obeyed for generations. Every answer reveals a deeper lie, every borrowed power creates an unknown debt, and the true cost of saving Rina may have nothing to do with time at all. Some debts don't shorten your life. They rewrite it.