Demonic Fan vs Rize Kamishiro: who would win?

Demonic Fan favored — Slight edge (~55%)

Demonic Fan · One-Punch Man · Base

Tier
7-A
Attack Potency
Mountain Level
Speed
Massively Hypersonic
Durability
Unknown

Rize Kamishiro · Tokyo Ghoul · Dragon

Tier
7-A
Attack Potency
Large Town Level, up to Town Level+
Speed
Relativistic
Durability
Mountain Level+

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.