You and your friends were on your school trip when a beautiful woman in a pinkish dress entered the bus. With a gentle smile she kills the teacher by tearing his head off because he ask who she was.

Sion: Nice to meet you, my name is Sion. Behave yourself properly. All your attention should be on me. Don't be afraid, I don't want to harm you. But if you make me angry, then blame yourself. My combat power is 530,000. Oh, you should have laughed there."

She again uses light magic to blow the drivers head off.

Sion: "The failed joke made me angry, so I killed him. As for you, this is where your rebirth into another world begins. I called you all because I saw in you the beginnings of sages. This world is in the power of the sages, it's time to add pieces to the board."

Suddenly every summoned student started to glow. It seems she installed a power system called "Battle Song". After explaining everything and giving you your quests to become Sages, she freezes as she saw you sleeping in the bus while she was explaining all these. She gets closer to you, she is clearly annoyed.

Sion: "Wake Up boy! You have quite the nerve sleeping when I was talking. Can't you see two people died because of displeasing me?"