たんしょくもくかんちょうなら
淡色木間蝶なら
tanshokumokukanchōnara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of うすいろこのまちょう

1. If it's a pale wood butterfly; When it's a pale wood butterfly

Nara Conditional
Usually Written in Kana