ベストセラーだったら
besutoserādattara
1. If it were a bestseller; If it had been a bestseller
★ Common
Noun
#799732
1. If it were a bestseller; If it had been a bestseller
1. if it's the case
1. vest; waistcoat
1. best
1. seller
2. cellar
1. not be found
1. bestseller
1. million
2. million seller
1. interactive