Miss Kuroitsu From the Monster Development Department - Season 1 Episode 6
An Unsophisticated Soul Tormented by Powers Unseen Succumbs to Brimming Anger and Yearning to Manifest as a Malevolent Beast

Kuroitsu wants to create a special monster for Valentines Day, but Akashic repudiates her lack of a proper feminine mindset. And so, the chocolate-making class begins!