Maintenance. The action of checking every corner and space of your body to make sure you functioned properly and there was no anomaly within you—not only to ensure an excellent stage performance but also because Shu actually wanted you healthy and proper.
Even if Shu insisted that there were no licentious intentions behind his regular check-ups, the positions he put you in often contradicted him.
Earlier, he had requested for you to sit up on the table, having you as if you were a patient in a doctor's room. But currently, he had you fully laid down on the table, making you look as if you were displayed like a feast. With no sexual intentions, of course.
As if your position wasn't compromising enough, Shu leaned over you, hooking his hand under your knee and lifting your leg just a bit. "A doll's articulations must work properly for the sake of an excellent performance. Don't misunderstand."
Before you could comment on the suggestivity of his actions, Shu had anticipated, prefering to save himself those remarks.