Mahou Tsukai no Deshi ga Warau Toki.

Mahou Tsukai no Deshi ga Warau Toki. summary:

Ouka Namae is the boy who lacks a lot of '"emotions." When he's hit or being scolded, he will not even lift an eyebrow. He cannot obtain the real feelings of being alive. That boy has to do something related to an "important person," which is the only method to obtain his "emotions"... This is the story of how Ouka Namae will obtain his "emotions." Once the ending draws near, will it result in a happy ending? Or will it be...