Is Secret Unnie coming back?

Name: Secret Unnie
Released: 2018-05-05

Secret Unnie (2018–2018) on jTBC

The answer: Concluded September 12, 2018.

Network / streamer: jTBC
Premiered: May 5, 2018
Ended: September 12, 2018
Runtime: ~45 min per episode

About Secret Unnie

One day, one secret unni of a girl appears! For 24 hours, the two of them will share secrets and a common bed for the night. Unnies will comfort and empathize with girls that have worries.