It will be first released on March 31. There are total 6 episodes.
Here is the schedule of the release dates:
March 31, Ep-1: I’m here, first meet.
April 01, Ep-2: Vitamin Trip.
April 02, Ep-3: Immersing in orange color love.
April 03, Ep-4: Wedding on the rock wall road
April 04, Ep-5: Listening secret whisper at pebble beach
April 07, Ep-6: Dream Journey in Jeju.