Nuance of ないようにしないと and a potential relative clause


I have a following line from a manga

> せめてお願いをする **/** あの子たち以外には
>
> できるだけ迷惑をかけないようにしないと

which of course means punctuation is lacking, hence / to indicate where a line
break was, which might indicate a comma.

Context: This is being monologued by a person who intends to take something
from one of "those girls" which is of course likely to involve all of them and
get a fight started.

So here (and before a bit) she is I think deciding that she wants to do things
as peacefully and quietly as possible so not to bother other people.

What I'm wondering is:

1) ないようにしないと. I know しないと is one of those "must" forms only with the negative
state missing which is common. So that alone means "must do". I wonder what
additional meaning is added with the inclusion of ように. With just ように I'd say
that segment means "So that (people) other than those girls aren't troubled".
Adding しないと seems to turn this just into "I must not bother other people as
much as possible". I'm just then wondering why use ように at all? Couldn't をかけないと
have conveyed the same? Or in other words, is there a more nuanced meaning
added with that ように?

2) せめてお願いをする, does this describe the girls? Or is this maybe a separate
sentence segment. Is this: "I wish at least, not to bother anyone except those
girls as much as possible" Or is is something like: "I'll at least ask the
girls (for what I need), and endeavor not to bother anyone else".

Sorry for the two-fer :D




ようにする means "to try to ～", "to behave in a ～ manner", "to lay out a situation
so that ～" etc. For example, 会う is simply "to meet", but 会うようにする indirectly
refers to some action/effort/thoughts that eventually leads to the result of
会う (e.g., making an appointment).

  * 迷惑をかける  
to bother/trouble

  * 迷惑をかけるようにする  
to try to bother; to behave in a troublesome manner

  * 迷惑をかけないようにする  
to try not to bother; to behave in a trouble-less manner  
(or "to avoid doing anything that may end up bothering them")

  * 迷惑をかけないようにしないと。  
I must try not to bother them.

お願いをする modifies あの子たち, but せめて ("at least, ...") adverbially modifies
迷惑をかけないようにしないと. If I could put a comma in this sentence, I would place it
right after せめて.




ようにする means "to try to ～", "to behave in a ～ manner", "to lay out a situation
so that ～" etc. For example, 会う is simply "to meet", but 会うようにする indirectly
refers to some action/effort/thoughts that eventually leads to the result of
会う (e.g., making an appointment).

  * 迷惑をかける  
to bother/trouble

  * 迷惑をかけるようにする  
to try to bother; to behave in a troublesome manner

  * 迷惑をかけないようにする  
to try not to bother; to behave in a trouble-less manner  
(or "to avoid doing anything that may end up bothering them")

  * 迷惑をかけないようにしないと。  
I must try not to bother them.

お願いをする modifies あの子たち, but せめて ("at least, ...") adverbially modifies
迷惑をかけないようにしないと. If I could put a comma in this sentence, I would place it
right after せめて.

