Momo

In this novel, Momo, a mysterious and enigmatic young girl, lives in the ruins of an ancient amphitheatre on the outskirts of an unnamed city.

She possesses an extraordinary ability to listen, which helps people find solutions to their problems.

However, the arrival of the Men in Grey, who promote the idea of 'timesaving' and steal people's time, disrupts the city's life.

Momo, with the help of Master Hora and a tortoise named Cassiopeia, embarks on a journey to defeat the Men in Grey and restore the stolen time to the people, bringing back the joy and humanity to the city.