The 'Tardiness Prevention Live' series is similar to 'School Attack', in that idol groups drop in at various schools without warning and put on surprise performances for students! But there's a catch: students who were tardy to school on that day have to stand outside and wait until the event is over!

For this episode, Pentagon visited Bulkwang Middle School. Ahead of their surprise performance, Pentagon said to the students, "We're excited to meet you soon, and we hope no one is late!" 

Did all of the students at Bulkwang Middle School make it to school on time, by 8:30 AM? Watch above to find out!