On May 7, the TVING-original spin-off series of tvN's 'New Journey To The West', titled 'Spring Camp', premiered with the cast members embarking on their bonding winter camping trip!

The cast members were divided into two teams - the OB team with Kang Ho Dong, Lee Soo Geun, and Eun Ji Won, and the YB team with Kyuhyun, Song Min Ho, and P.O. But halfway through the YB team members's day, the staff revealed that a new member who had to take a hiatus due to an "injury" would be joining them!

Hearing this, Kyuhyun, Song Min Ho, and P.O. looked completely surprised. The new member then emerged from somewhere off the camera - one of the original cast members of 'New Journey To The West', Ahn Jae Hyun!

Check out how the boys reacted once Ahn Jae Hyun barged in on their camping trip, below!

The staff: "Now, please come in."

P.O: "Forreal?"

Caption: A welcome face after almost 2 years.

Caption: The food was ruined but my friend is here.

Kyuhyun: "You look thin."

Later on, washing dishes, Kyuhyun: "Did they tell you to keep it a surprise?"

Ahn Jae Hyun: "Yeah."

Kyuhyun: "To keep it a secret even to us?"

Ahn Jae Hyun: "I really wanted to tell you though."

Kyuhyun: "Yeah. Good job." 

Meanwhile, the brand new 'New Journey To The West' spin-off series 'Spring Camp' airs exclusive via TVING!