A friendly reminder that Japan's rent-a-family industry was completely fake: https://newrepublic.com/article/160595/new-yorker-japan-rent... Everyone loves stories about how weird Japan is (especially the Japanese), so these stories should be taken with a grain of salt.
Has anyone found this guy's Twitter handle? That would be one way to check the story. Probably easier for a Japanese speaker to locate.
https://twitter.com/morimotoshoji
Obviously the existence of the Twitter handle is just the first step in some kind of real verification. But it does confirm that, if it's a con, it's a long lived, dedicated one.