Something strange happens at Rin’s favorite shopping street. The culprit seems to be a rat, but it is not just your ordinary rat. In search of the cause, Rin finds herself in danger, and it’s time for Arc to respond with his imagination!

Kazuo, Yuma's classmate and amateur radio aficionado, has found a shred of happiness in his gloomy life by communicating with someone called "Fio" every night. Unfortunately, the waves used in their correspondence have accidentally summoned "Noiseler" from space! Will Yuma be able to protect Kazuo after learning the truth about Fio?

After working and solving so many cases together, Shu seems to have really become a part of SKIP. But wait... He's been writing a report to the GDF late at night!? While revisiting the memories of previous incidents, one by one the SKIP members join him in a discussion about Ultraman Arc. What are their thoughts on Arc?