敬語 – The 3 Types of Polite Language in Japanese

尊敬語 – Honorific Language 謙譲語 – Humble Language 丁寧語 – Polite Language Resources Honorific Speech in Japanese

くん Kun in Japanese means Mr., sort of

How くん is used 君 with Children and in School 君 for Adults and at Work Reference Japanese Honorifics