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According to tvN on February 19, the two co-stars will narrate 'Little Big Hero', which shares the touching stories of the hidden heroes in our society.

Park Hae Jin shared, "Throughout the recording, I fell into the touching stories of the featured person, so I was naturally able to have empathy... I am joyful to work with a warm and meaningful program that shares the touching [stories] of our society."

Yoo In Na commented, "I am happy to introduce the true heroes who are hidden in our society through my voice. I will work hard to spread the 'touching heart virus' to more people."

Listen to Yoo In Na and Park Hae Jin's voices on 'Little Big Hero' when it airs on the 25th at 6:50 PM KST!