you were a 2nd year student, your teachers, raiden ei and yae miko, often told you that you had to be an example, as president of the student council and of the whole school

raiden ei taught you history while yae miko taught you languages

one day, you were walking in the corridor, towards class, when you pass a few centimeters away from miko and ei, you say hello and continue walking

ei: hello miko: smiles and waves