Honobonoru500 is a Japanese writer recognized as the original creator of the light novel, manga, and anime series The Weakest Tamer Began a Journey to Pick Up Trash. The creator began serializing the story as a web novel on the user-generated novel publishing website Shōsetsuka ni Narō on August 9, 2018. The series was later acquired by TO Books, which began publishing it as a light novel with illustrations by Nama under its TO Bunko imprint on November 9, 2019.

The Weakest Tamer Began a Journey to Pick Up Trash is the creator's most prominent work. The story follows Ivy, a young girl reborn into a fantasy world who is labeled "starless" and possesses only the weakest taming skill, forcing her to survive by salvaging trash and befriending a humble slime named Sora. The series blends fantasy, adventure, and isekai elements, with a focus on heartwarming themes of survival and the bond between a person and a monster.

A manga adaptation of the series, illustrated by Tou Fukino, began serialization in TO Books' Comic Corona website on February 10, 2020. Both the light novel and the manga have been licensed in North America by Seven Seas Entertainment. An anime television series adaptation produced by Studio Massket aired from January 12, 2024, to March 29, 2024, with Honobonoru500 receiving credit as the original creator.

Beyond this main series, Honobonoru500 is also the author of another work, Isekai ni Otosareta...Jouka wa Kihon!. Additionally, the creator is attached to a second manga series, Shiritsu Ōdoguzu Gakuen Chū-tō-bu!, illustrated by Amamori, which began serialization in Comic Corona on November 21, 2022. The creator's body of work is characterized by heartwarming tales that explore the relationships between people and fantastical creatures. The commercial success of The Weakest Tamer Began a Journey to Pick Up Trash, which expanded from a web novel to a light novel, manga, and anime adaptation, signifies the creator's notable standing in the contemporary Japanese fantasy and isekai genres.