NINjas are the people responsible for guarding the king.
|( を or に ) まか＊せる||
leave it to me! To make someone responsible for some task.
|任||have responsibility for||PERSON||人|
The MASTER dwells in the mansion .
The PERSON has responsibility.
'Go on a trip' has the GO radical (行).
leave it to me!
任せる 委ねる 託す