Koro-Sensei

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Tier: 7-C

Name: Koro-Sensei

Origin: Assassination Classroom

Age: ???

Destructive Capability: Likely Town Level (When cell division stops he will destroy earth though, can't be cause intentionally though)

Speed: Hypersonic + (Mach 20)

Durability: City Level + (Nukes would not kill him)

Striking Power: Trash Level -