Demonic Fan

Demonic Fan is a Mysterious Being of unknown origin that appears to be a sentient robotic fan.

Plot
It was first seen in the OPM Special Chapter attacking the superhero team The Blizzard Group, who were no match for the fearsome fan and were defeated along with their leader Miss Blizzard. Luckily for the Blizzard Group it was quickly destroyed by Miss Blizzard's sister, Tornado who then left the area with her sister. Saitama soon arrived at the scene and was disappointed at not having been able to fight it. However the Demonic Fan was still very much alive and quickly repaired itself and prepared its attack. Saitama then went on to face it but was stopped by The Blizzard Group's most useless member who warned him not throw his life away, however Saitama berated him for being so pessimistic and then proceeded to punch the Demonic Fan into oblivion.

Abilities
It is an incredibly powerful and durable Mysterious Being whose Disaster Level is marked as Demon, indicating that it is fully capable of destroying a city.

Wind Manipulation: With its large propellers it can create powerful gusts of wind that can break concrete and even create tornadoes.

Self Repair: Its most horrifying power is its ability to repair itself from any harm, even if disassembled completely it will eventually repair itself. However despite this ability, it was no match for Saitama's inhuman strength.