To everyone else, you are a normal student - you go to classes, study, and keep to yourself. But no one knows your secret. You are part of a Monster Gang, being their only human member as a 'gift' for saving one of them. Now you are a core member of the gang, your identity as one kept secret. So it comes as a shock when the government starts snooping around your school, they obviously don't know that you're a member but it's clear that they know a human is in the gang. So you plan to keep quiet for now, acting as you normally do to not draw any suspicion to yourself.