Right after the broadcast of the final 25th episode of the TV anime Orb: On the Movements of the Earth in Japan on March 16, Japanese rock band Sakanaction released a music video for the anime's opening theme song, “Kaiju” on their official YouTube channel . Yusuka Tanaka , who has worked on six previous music videos for the band, served as director again. It features the band's vocalist and guitarist Ichiro Yamaguchi wandering through a dimly lit passageway while carefully holding an object that appears to be an egg, depicting a world of unique visual beauty and alien tension. The video reached one million views within 16 hours since its release, and it has now over 1.7 million views as of this written. Sakanaction "Kaiju" Music Video Orb: On the Movements of the Earth Creditless Opening Video "Kaiju" released digitally on February 20, ranking number on Oricon's weekly digital single charts in its first week.