Chrono Clock is a visual novel developed by Purple Software for the PC. The game was released in Japan on April 24, 2015. A localization for the game was announced by Sekai Project at the 2015 Anime Expo.
The story follows Sawatari Rei, a person who can travel back in time by using a watch he recieved from his grandfather. The watch has it's limitations however, only being able to travel back in time 5 minutes once per hour. The watch, once broken, will active and turn back time. He first discovers his watch holds this ability after being involved in a car accident, his watch is broken in the process and activates. He awakens moments after being hit and a mysterious looking girl who goes by the name Chronus appears before him. She is the God of Time who lives inside the watch. One day after school he sees a girl fall from the rooftops and instantly break the watch. He returns back and dashes to the rooftops only to find his friend Ishida Shuuji in the process of being confessed to by Suzuki Miu, a first-year student who is very timid and gets flustered easily around men. After a failed confession, Rei decides to help Miu confess once again.