My Dress-Up Darling manga volume 12 features story and art by Shinichi Fukuda.

Although the impromptu horror-game group cosplay came with a whole bunch of twists, from JuJu's surprise costume to Akira's rowdy outburst, one big revelation failed to make the highlight reel: Marin never told Wakana how she feels about him! Now with Winter Comiket and a complicated new cosplay on the horizon, the right moment seems even more elusive! But as Christmas cheer fills the air, could there be a more perfect time for a heartfelt confession of love?!