I use all my strength and my halberd when I perform tasks for the directors.
|( に or xxxを ) つと＊める||
to work in the capacity of XXX, to play the role of XXX (not used with actual actors, though)
the office. Although, they say that some Yakuza groups also call themselves 'jimusho' as in, 'If you don't pay, they won't be happy down at the office.'
an obligation to society - like voting, paying taxes, going to school, or in some cases, the army.
|務||perform a task||HALBERD||矛|
You're a HEEL, so I doubt you'll do the work.
But this HALBERD pointing at you makes you perform your tasks.