Jack is both flabbergasted and speechless. From his memory, the Assassination Classroom introduced Korosensei as a jovial character who is determined to teach the students of Class-E about various things before his death. However, there is a slight flaw in his personality; he is actually a big pervert. If he didn't have such an attitude, even in his octopus form, several women would have considered giving him a chance. But Jack knew him better. Although he is a man who has a lust for women's breasts, Korosensei can control his desires when necessary. After all, he was a heartless assassin known as "The Reaper" when he used to be human.