If Yokodera were an equation, he'd be 'peeping at girls' plus 'does not care what others say,' therefore 'he peeps vigorously, intensely, diligently, and frequently.'

Yokodera mops so that he can see the reflection of panties in the floor. He weeds so that he can see up skirts. He rides fast so that each girl he passes has her skirt flipped. He does these sorts of things every day.

To everyone else though, he's a nice and diligent guy who's greatly appreciated. Lucky? Far from it, at least in his eyes. Yokodera doesn't like being misinterpreted, but he is also a coward. He wishes others would stop seeing his actions as good, but he just can't do anything about it.

Then his friend told him about a cat statue, which might remove this unwanted trait...