A kobold or minor demon from Bavarian and Austrian folklore. Bilwis was originally a benevolent trickster who would tangle the hair of children in their sleep. He could also cure illness if treated well. In time, Bilwis became a Bogeyman who robbed farmers of their crops, using the sickles on his feet and his pitchfork to enter fields and steal from them.
Bilwis can be found in Alraune's Domain, in Kiccigiorgi Forest and in the lowest levels of Naraku. He can teach Flynn the Poison Claw, Dia and Lunge skills through his Demon Whisper.
Shin Megami Tensei IV: Apocalypse
Bilwis appears in the initial southern areas of the Fairy Forest. It can teach the Poison Claw, Dia and Bufu skills during Demon Whisper.
Devil Summoner: Soul Hackers
"A creature said to appear in German grain fields. It comes at night and damages crops. It is tall and emaciated with an ugly face. Scythes are tied to its toes, and by walking through fields with them on, it mows down the grain. Bilwis appears on Walpurgisnacht, or before sunrise on Pentecost."