A song with the theme of "a couple who can't part with emotions" that is often seen in Japanese romance. For this song, she wants her boyfriend to break up, but she's aware of it. But she felt that if she smiled, she could extend the time to hear the farewell words. She ended up saying goodbye to her in the end, but did the days she smiled and deceived make sense or not? It is directly related to the answer of whether this time of 3:55 (song time) was meaningful or not. Regardless of which answer the listener gives, the creator will be happy just because the listeners and characters have spent that time.