There is a massive japan x nigeria cultural exchange happening in japan.
This is why they are allowed into Japan, they are of the blood of Japanese.
They've been sharing their culture and have a lot of interest in it. There's even some half-Nigerian half-Japanese people like the girl in the picture
https://youtube.com/watch?v=gFa3ACAjBxk> Nigerian wedding in Japanhttps://youtube.com/watch?v=pS8M5urTFi4> Anambra Union End of Year Party in Japan | The Igbo People |Nigerians living in Japanhttps://youtube.com/watch?v=J5__d839fQo> When you love Japan but you're also Nigerian and culturedhttps://youtube.com/watch?v=4Uau3mP_ctE> HOW I MOVED TO JAPAN II FROM NIGERIA TO JAPANhttps://youtube.com/watch?v=MsQR2Pr37f4> FINALLY!! Moving To Japan From Nigeria.. 