YOU SAID:

This is a book series about some young 18 year olds

INTO JAPANESE

これは、いくつかの若い 18 歳の本シリーズ

BACK INTO ENGLISH

This is some young 18-year-old book series.

INTO JAPANESE

いくつかの若い 18 歳の本のシリーズです。

BACK INTO ENGLISH

It is a series of several young 18-year-old book.

INTO JAPANESE

いくつかの若い 18 歳の本のシリーズです。

BACK INTO ENGLISH

It is a series of several young 18-year-old book.