I also download this when OP uploaded so I can confirm this was uploaded in twitter on February... Except the artist twitter information state they only joined Twitter on August, 6 months later.
What magic is this.

@yelite : any guess?

Hyoroemon said:

I also download this when OP uploaded so I can confirm this was uploaded in twitter on February... Except the artist twitter information state they only joined Twitter on August, 6 months later.
What magic is this.

@yelite : any guess?

Possibly a glitch and it meant august the year before?