Semimaru Zanjitsuroku

Semimaru, an office worker who awoke one morning only to find that he had tragically become a cicada. A classic example of the short-lived, a cicada... After seeing that he did not have long to live, Semimaru decided to meet his end in a cool way. See his thrilling new daily life and his coworkers, who have to watch themselves around him! The curtain on the industry's first gag cartoon of a cicada at its time of death has finally opened!

(Source: Kodansha, translated)