This is a great example of why you should get on Twitter and follow idols, yes, if you want to learn about idols, but why you should also follow people who know about idols, because it’s the random things that sometimes send you straight to gold.
In this case, I refer to @deadgrandma, a Person Who Knows Things and has been around a little bit, who sometimes refers to things that I’ve never heard of. This sends your dutiful Maniac to look up the reference, which often leads to neat personal discoveries but, fortunately(?), not so much on the idol side. Until, UNTIL my friends, until the other day when a familiar word — Pikarin — was in the tweet, and … well, this was the result: