Kizuku Watanabe is a manga artist from Kumamoto Prefecture. He debuted in Weekly Shonen Jump in 2010 with the fairy-tale parody Marchen Prince Grimm . From 2015 to 2019, Watanabe planned and wrote Assassination Classroom: Koro Sensei Quest! , the official spin-off of the best-selling Assassination Classroom . In 2024, he returned with his latest manga, Kaiju No. 8: Relax . Naoya Matsumoto published his first serialized series, Neko Wappa! , in Weekly Shonen Jump in 2009. His next series, Pochi Kuro , began serialization in Shonen Jump+ in 2014. Kaiju No.

8 is his follow-up series.