What are the meanings of "59", "18" and "27" in family education?

59 is Hayato Gokudera, because the Japanese pen name of the prison temple is ごくでら, ご is the number 5, and くく is the number 9, so it is called 59;

18 is Kyoya Hibari, because lark's Japanese pen name is ひばり, ひと is the number 1 and ばば is the number 8, so it is called18;

27 is Sawada Tsunayoshi, because the Japanese pen name of a gang is ツナ, ツナ is the number 2 and ナ is the number 7, so it is called 27.

Sawada Tsunayoshi is the Japanese cartoon "The Tutor Killer Rebirth! Because the protagonist in the novel and its derivative works can't study and exercise, he is called "loser class" by the students around him. The 10th generation leader of Pongler, who has a big ring, is the descendant of the first generation leader of Pongler who traveled to Japan, so he was chosen as the heir of the 10th generation leader by his family.

However, I firmly refuse. After being reborn and launching a death bomb, it can exert amazing potential. Originally, he was weak and wanted to escape from everything, but he attached great importance to friendship and fought desperately when his friends met with crisis. After more and more battles, he grew into a trustworthy leader.

Extended data:

Mentor is a hot-blooded juvenile cartoon serialized by Japanese cartoonist Akira Amano in Weekly Juvenile Jump. The work was also adapted into an animation of the same name.

The story revolves around the growth of Sawada Tsunayoshi, the leader of the 1st generation of Italian Mafia, and his family members.

Sawada Tsunayoshi is the first generation descendant of Poglie. He is a "loser" who can do nothing, but in order to train him to be the leader of Vongra, an Italian killer named "Rebirth" teaches Gungi. He was kind-hearted and didn't want to hurt others, but he began to take on the responsibility of protecting his companions and grew into an excellent leader.

References:

Baidu Encyclopedia-Sawada Tsunayoshi

References:

Baidu Encyclopedia-Tutor HITMAN reborn!