Kumeta-sensei’s Proxy Broadside at Akamatsu-sensei and “UQ Holder” Hey gang. Back at the end of 2013, when UQ Holder first started, I reported on how KUMETA Kouji-sensei, probably best known as the manga-ka of the popular series Sayonara Zetsubou-sensei, slammed Akamatsu-sensei and UQ Holder in Kumeta-sensei’s then new manga series, Sekkachi Hakushaku to Jikan Dorobou.