Kaito Sera

Kaito is a young senior engineer who is also a teacher at Kirishina Academy and homeroom teacher of the A-TEC class. He aspires to make a new engine with his students, His inspiration to keep A-TEC going and allow his students to keep working comes from the company's co-founders' humble beginnings when they were in high school. He gives off the impression that he can be easily popular with his students because he is closer to their age, but in fact, he can be annoying during passionate speeches.

(Source: Wikipedia)