はつかねずみであれば【二十日鼠であれば】
hatsukanezumideareba
1. If it is the 20th mouse; If the twentieth mouse exists
Noun
#2197733
1. If it is the 20th mouse; If the twentieth mouse exists
1. departure; departing from ...
2. sent from ...; (a letter, etc.) dated ...
+ 3 additional meanings1. twenty; 20
1. first; new
1. nothing but; except
1. for the first time
2. only after ... is it ...; only when ... do you ...
3. first time; (one's) first