A class full of troublemakers with bad conduct and poor grades. One day after school, the principal reveals a shocking truth! It turns out that these students won't be able to graduate like this. The students were surprised by the sudden notice, but they desperately pleaded to graduate. Then the principal made a proposal: daily service activities. 'Is it cleaning or something?' asked one student. The teachers just smirked and didn't provide any details. From that day on, their days of being exploited by the teachers began…
