taking over (e.g. store or family's headship); subrogation; substitution of one person for another (usu. a creditor)
substitution (for someone else); substitute; stand-in; scapegoat; sacrifice
quick change; quick transformation; metamorphosis; turning suddenly into
taking over another's debt; shouldering someone else's burden; subrogation
(Japanese) imperial succession
a rise above a certain level (of a stock price, etc.)