[zerosum]

Originally Posted by IceHism

Not sure if that is his real name or not (well we don't know much about him besides rumors anyways) but he seems to want to stay anonymous.

Well if this the case,

Spoiler for identity:

Satou Tsutomu probably someone close to Wataru Watari (yahari author) or he probably the same person with multiple pen name for different company

this is what i though