Glad you guys are enjoying it! The song itself was made when my friend was quarantined in our dormitory because the dorm master thought he had h1n1, funnily enough. Weird stuff happens when you have a lot of time. Then it turned out that all our Japanese friends actually fell in love with the song, so I offered to make a video so it could go on youtube.
But of course the real inspiration was our intensive love for Japanese konbini