Piril: Sayilarin Gizemi
A cloud like no other has appeared in the sky. The numbers then disappear one by one. İlhan, who is trying to take revenge for the trauma he experienced in his childhood, is destroying the numbers with Biliş, whom he took with him. As the numbers are erased, everything begins to deteriorate and daily life comes to a standstill. Pırıl and her friends embark on a breathtaking adventure to solve the problem. In addition, they find the four-operation mathematics at the basis of big problems and use mathematics again to save the world from chaos.