This exclusive edition is not a standard tankoubon. It includes:
Drawn by Mito Nagishiro, never published online. Examples: boku wa chiisana succubus no shimobe 1 exclusive
The series follows Yuuki Katsuragi, a timid high school boy who suddenly finds himself bound by a magical contract to Lilim, a petite, mischievous succubus who appears to be no older than a middle schooler. Despite her young-looking appearance, Lilim is a centuries-old dream-eater who needs Yuuki’s "vital energy" to survive in the human world. The twist: Lilim is extremely clumsy, emotionally immature, and secretly lonely. Yuuki becomes her "servant" (shimobe) — tasked with protecting her from rival demons, helping her integrate into human society, and somehow surviving her daily (often accidental) seduction attempts. This exclusive edition is not a standard tankoubon
Volume 1 introduces: