Listen to the stories of 'Immortal Songs' and 'Kingdom'. Stories of contest stage. What each of the members felt through the contest stages and how they wanted to get closer to their fans and audience. Growth story.
| Creator | N/A |
|---|---|
| Actor | Kim Hong-joong, Park Seong-hwa, Jeong Yun-ho |
| Country | N/A |
| Production | N/A |
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