"Oh! Can I use my mana?" Renault asked.
"Sure, go ahead," said Lord Fate, smiling. [Carrot has been given, now it's time for the stick.]
" Teacher, Please get ready," said Renault, giving a warning before he started. [Even if the teacher is good and strong, it doesn't mean I cannot hit him. What if I hit him and gaze upon his ego? I am an F+ ranker after all. With just some effort, I will be an E- ranker. It's better to warn him so that he couldn't tell that I hit him by a surprise attack] he thought.