BTOB members surprise Sungjae with delicious snacks on the set of 'School 2015'

BTOB maknae Sungjae was surprised by his fellow BTOB members, who ambushed him during his shoot for the drama 'School 2015.'

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In the video above, BTOB gallivant about Seoul, scouring the city for snacks that their maknae can enjoy on set. What started off as a friendly competition soon turns into a full-blown war near the end when Sungjae is forced to pick his favorite snack.

Out of all the delicious sweets that were laid out in front of him, Sungjae modestly settles for a yogurt to the dismay of some and the joy of others. The losers turn on the poor maknae to bash him for his choice, completely forgetting that the whole purpose of the mission was to cheer Sungjae on.

Watch the hilarious video for yourself above!