After seeing the photo above, netizens couldn't believe there was a 15 year age gap between actress Kim Hee Sun and B1A4's Baro.

On March 10, MBC's 'Angry Mom's official Instagram account posted this photo of the two on set linking arms and wearing school uniforms.

For reference, Kim Hee Sun is 37 years old (born in 1977) and Baro is 22 years old (born in 1992). Even though Baro has a baby-face, Kim Hee Sun looks closer to a peer than a mother.

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Kim Hee Sun will be playing a mom who goes back to high school to protect her bullied daughter in MBC's upcoming drama 'Angry Mom'. The drama also stars After School's Lizzy and child actress Kim Yoo Jung.

'Angry Mom' will air its first episode on March 18 after 'Kill Me Heal Me'.

Are you looking forward to watching Kim Hee Sun rock a school uniform?