NCT 127 stands out with the narrative of Seoul's problem solvers calling upon fans.

The concept of Seo Sara, the "Seoul Troubleshooter," where members gather upon receiving a call from fans, looked unique and fun.

Especially when fans directly access the site and press the Call One Two Seven button

It was a nice touch to make it possible to hear the members' voices, giving the feeling of communicating.

The trailer video released on YouTube also shows a mysterious call signal being sent to the members.

I became more curious about the next story.