春秋 はるあき筆法 ひっぽうでしょう
haru akino hippōdeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 春秋の筆法

1. Probably a style of the Spring and Autumn period.; Likely a technique from the Spring and Autumn period.

Polite
Presumptive
Conjecture