High Schooler Todo Sarutobi is awoken in a strange land and being greeted by.. Osiris? Learning of his untimely demise, Todo is presented with a chance of a new life if he can win a mystery bet from Osiris. If he wins, he gets reincarnated into a wealthy and loving family. If he loses, he is sent to an alternate world to stop a mysterious dark power that threatens the multiverse. It seems like an easy choice until Todo is confronted with the bet and the new issues that arise from it.