Tried finding out who he is but failed. Can't access instagram but I doubt is the video creator.
Here's what I found: Some say the book does not have that star of Remphan on the cover. Maybe there's different covers/editions. https://equalopportunityreader.com/2020/06/11/a-black-guy-was-sitting-next-to-me-on-the-subway-yerong/
This jew protests and claims the org doesn't exist: https://xcancel.com/Klayhamn_/status/1982735097674830091
But it does: https://youtu.be/ScTJEy5JQS4
Looks to me like the book was brought to Japan by the jewish org and got a partly new, Japanese cover. (Sleeve around ower third) !
Clearer pic: !
Their site: https://yamato-judea.org/ https://archive.ph/Jzjww
Logo Hi-rez: !
Leaving that rabbit hole for now.
Let's see if Japs will 110 them.