Sacrifice in the name of eternal life

A gangster dies at the hands of a boy who lost his parents to her. Only for that Gangster to wake up in a strange world in a strange body with nothing to her name but a frightened little assistent of the original body's owner. The original tried to optain eternal life. Well and now look at this mess!

"I swear, if I find you, I'll make you meet god!"

Meanwhile the troubles of the originals history start to catch back up. Now who is that random smart-mouth toddler plotting around?!

(Writen by a person who's native language isn't english so please correct me if necessary!)