JTBC has released a behind-the-scenes video of Ong Seong Wu filming the poster for his upcoming drama, “18 Moments.”

“18 Moments” focuses on the precarious age of eighteen, when even the smallest things can cause a whirlwind of problems and each moment that passes by can leave a deep impression. The drama stars Ong Seong Wu, Kim Hyang Gi, Shin Seung Ho, Kang Ki Young, Shim Yi Young, Kim Sun Young, Park Sung Keun, Heo Young Ji, ASTRO’s Moonbin, and more.

In the already-revealed poster, Ong Seong Wu showcases his character’s pure heart by blowing a dandelion into the camera. The behind-the-scenes video shows the work that it took to make that shot happen, including several takes, constant makeup and hair retouching, and the actor’s commitment to bringing out the best of his character.

Check out the sweet video below!