Jack the Poetical Private / 詩的私的ジャック

Despite its focus on STEM, the S&M series sure seems to have an aversion to formula. While the previous book broke the mold by moving from a lab to a more traditional manor, Jack the Poetical Private instead breaks free of the closed circle. Unfortunately this didn't quite work out, and Jack the Poetical Private is the weakest entry in the series thus far.

Definitely no underlying reason for that...