不純ふじゅん異性いせい交遊こうゆうではありません
fujun'iseikōyūdewa arimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 不純異性交遊

1. Not having improper relationships with members of the opposite sex.; Not engaging in illicit affairs.

Negative
Polite
Formal Register