>birth rate started to decline right after K-ON! aired
Coincidence? I don't think so.
That's because K-On! was the zenith of all the japanese society, and decline always come after it.
>Kentarou Yabuki unlocks his legendary stash of outright porn
>nine months later, birthrate collapses
>tissue sales skyrocket, though
I don't think so too my friend.
>tfw the percentage of girls aged 15-19 in the Japanese population is steadily declining
3D girls are disgusting anyway, nothing of value is lost.
I am literally going to marry Azusa.