The concept of "time" can be described as both beautiful, empty, and cruel. It's important to note that once a moment has passed, it cannot be reversed or changed. However, this does not mean that we must accept our past actions without regret. Rather, we should use the lessons learned from those experiences to make better choices in the present.
In the story "Chronos Ruler," Koyuki's injury prevents her from dancing with her friends, causing her great pain as she watches them prepare for a show. While it may be tempting to go back in time and change what happened, we must consider that doing so would not undo the consequences of our actions. Instead, we should focus on making amends and moving forward in a positive direction.
The Japanese version of Chronos Ruler has been serialized in the web magazine Shounen Jump+ since March 26, 2015 under the title Jikan no Shihaisha (時間の支配者).