I recommend "Pretty" because of its poignant yet composed breakup atmosphere.

I love the strong atmosphere that evokes memories of a past love. The guitar playing doesn't overdo the emotional intensity, yet the lyrics are clearly audible, allowing me to immerse myself more deeply. I particularly love the way the emotions gradually build up towards the chorus. Even though it is a sad song, it doesn't feel too heavy, so it is easy to listen to. If you listen to it on a quiet night, the lyrics resonate even more, and memories of the past naturally come to mind. I recommend it because you can experience DAY6's signature band sound along with their emotional vocals.