いたいけもりでしょう
いたいけ盛りでしょう
itaike morideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of いたいけざかり

1. Probably at their peak of beauty.; Probably in the prime of youth.

Polite
Presumptive
Conjecture
Usually Written in Kana