Quotsanzen sekai no karasu wo koroshi nushi to asane gam shitemitaiquot translated as quoti39d kill all the crows in the world to sleep with you in the morningquot is an old song sung at a red light district in the mid 1800s by one guest takasugi shinsaku a central figure of the early meiji restoration who lived a turbulent life the saying means quotwhen a crow cries i must leave this place even if i must kill crows all over the world i want to stay with you a little while longerq