There was a camping anime some years ago that was sponsored by a group of camping and outdoors sites in Japan, and it was a pretty big hit. They even saw an uptick in campers, especially first-timers, after the show started airing.

This was also a period where there was a weird amount of anime that had, like, newlywed couples and couples with young kids, slice of life stuff. People put two and two together and started making jokes about the Japanese government covertly sponsoring anime studios to adapt material that depicted a positive image of family life to encourage people to have kids. Abe, being the Prime Minister at the time, had his face plastered all over the memes about it.