The Twitter account for animator and director Osamu Kobayashi has posted that Kobayashi passed away on April 18, 2021. He was 57 years old at the time of his passing. The Twitter post explained that for the last two years Kobayashi was battling kidney cancer. The post added, “it is regretful that there were more things he wanted to do, and more works he wanted to make, and when he is reborn he will surely make great works!”
Kobayashi’s directing credits include BECK: Mongolian Chop Squad, Paradise Kiss, Someday’s Dreamers II Sora, Table and Fishman, End of the World, Digital Juice, and Ani-Kuri 15. He served as an episode director for such anime as Naruto Shippūden, Panty & Stocking with Garterbelt, Gurren Lagann, Gad Guard, Dororo, and Lupin III: Part IV.
Kobayashi was also a scriptwriter, overseeing and writing scripts for such anime as Paradise Kiss, BECK: Mongolian Chop Squad, Naruto Shippūden, and Rinshi!! Ekoda-chan. He was also a storyboard artist, designer, and animator for many anime.