Please teach me how to read this kanji.

That person (he) is my boss.

She suggested teaching sex education using a dildo.

His job title is a doctor.

He is working as a behind-the-scenes assistant at the theater.

He heard the clattering sound of the machine being hit.

This pattern is very beautiful, isn't it?

There was no trace of him in his room, as if to make one forget that he had been there.

He achieved a quick kill in that game.

His character has the power to seckill enemies.