Location from One-Punch Man by ONE & Yusuke Murata
King's home city — where the 'Strongest Man on Earth' plays video games in his apartment and hopes nothing attacks nearby.
M-City is notable primarily as King's residence. The city has an unusually low monster attack rate, which the Hero Association attributes to King's deterrent presence. The actual reason is statistical luck.
A standard modern city. Nothing particularly remarkable about it except that King lives there, which means monsters occasionally show up looking for a fight and leave disappointed (because King intimidates them by accident).
Also known as: M-City