Mouse, fly to the ends of this sky.

A mouse looked up at the sky. The mouse wished to fly through that sky. However, a mere mouse could never fly through the sky. The mouse never fulfilled that dream and breathed its last. But that wish was passed down to the next generation, and after countless millions of years…… ※This work is a participating entry in 'Sendō Planning Part 2' hosted by Sendō Arima. Please read this together with the audio composed by Sendō.