Hi, [@Jedly], it's nice to meet you! Here's your thorough run down on what's happened so far:

The gates of Komei Academy were locked and the students got panicked thinking they we're going to be late (an action that would result in being expelled). It was essentially a giant entrance exam for everyone. Kids chaotically ran through the school and faced obstacles that hampered them from getting to class. Once in class Yoshida (the homeroom teacher) spoke and introductions started. Now, there is supposed to be a [s]tournament arc [/s]competition/test amongst the students, consisting of a hostage rescue mission within training ground Beta. Round 1 has just started and it's only now getting real spicy, you came in at a great time.

That's pretty much it, a lot of the IC really is small-talk and relationship development.