Artist's commentary
Super Strong Heartful Devil Momo Form
Spoilers for those that haven't read the tankoubons for Machikado Mazoku. For those curious, pick up the September 2019 issue of Kirara Carat!
More spoilers below
Due to Momo having terribly lame clothing tastes, the new battle form she came up with is super lame
Unable to just stand by and watch, Lilith-san drew up Momo's strongest battle form, 『Super Strong Heartful Devil Momo Form』
By decreasing the amount of fabric coverage, it'll have a dramatic effect on heat disposal and speed during mana emissions.
Even the cat ears, tail, and tatoo, which look pointless at first glance, serve as magical symbols
Increasing cuteness and constructing magical circuits at the same time
※Since it only appeared in one panel, purely for comedic effect, the color scheme and fine details are comprised of my personal interpretations