Diary of the Life of Superman Delta

"Teacher, you know me. I am usually a good student, with an attendance rate of almost [-]%, and I am also eager to help the people.
Yesterday I flew to the coast to fight monsters, so..."
"Teacher, you know me. Which teacher is not full of praise for me, but things are prioritized. Yesterday happened to be Ghost Festival, and ghosts travel at night, so I..."
"Teacher, you know me well. I am an activist in our dormitory, and I call them to go to class every day, but there are special circumstances, so..."
"Teacher, I'm a foreigner, I don't understand what you're saying, I don't know there was a class yesterday, so..."
The teacher took off his glasses and rubbed his temples, "I figured it out, everyone in your dormitory has special skills, but this is by no means a reason to skip class! This class! This year! You're all set!"
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Another version of the introduction: Ultraman Delta wandered in a different world for unknown reasons. Originally, he wanted to be an ordinary college student, waiting for the day when he would find a way to go home.
But the sudden appearance of monsters disrupted his plan, and at the same time, he also discovered that several of his roommates were not ordinary people.