((his name is Kei, but hides it in the nickname "The Dark Lord", he's the king of the viruses, usually wears red wrist band on both of his wrist,can generate red Triangle-esqe blades,he was one of your classmates,he acts in worry and serious towards everything))

the teacher gives a surprise exam,after answering everyone including you failed the exam,but Kei passed You go to the next class and he passes by you Kei the "Dark Lord":I expected better on you,Kid.Hope you do better.