Uglymug, Epicfighter


Uglymug, Epicfighter is a Japanese web novel series written by Ryō Hiromatsu. It was serialized online from February 2015 to October 2022 on the user-generated novel publishing website Shōsetsuka ni Narō. A manga adaptation with art by Osamu Kozuki was serialized in Square Enix's manga magazine Monthly Big Gangan from November 2017 to December 2020 and was collected in six tankōbon volumes, with a sequel manga serialized from 2024 to 2025 and collected into two volumes. A light novel version with illustrations by Akira Banpai was published under Kobunsha's Kobunsha Light Books imprint in May 2018. An anime television series adaptation produced by White Fox aired from July to September 2025.

Characters

;Shigeru Yoshioka
;Seika
;Seiji
;Reeze

Media

Web novel

Written by Ryō Hiromatsu, Uglymug, Epicfighter was serialized as a web novel on the Shōsetsuka ni Narō website from February 19, 2015, to October 15, 2022.

Manga

A manga adaptation illustrated by Osamu Kozuki was serialized in Square Enix's seinen manga magazine Monthly Big Gangan from November 25, 2017, to December 25, 2020. The manga's chapters were collected into six tankōbon volumes released from April 25, 2018, to February 25, 2021.
The manga is published in English on Square Enix's Manga Up! Global app.
A sequel manga also illustrated by Kozuki, titled Busamen Gachi Fighter SSS, was serialized from December 25, 2024, to September 25, 2025. The sequel's chapters were collected into two tankōbon volumes released on June 25 and October 24, 2025.

Light novel

A light novel version with illustrations by Akira Banpai was released under Kobunsha's then-newly launched Kobunsha Light Books imprint on May 18, 2018.

Anime

An anime television series adaptation was announced on November 18, 2024. The series is produced by Egg Firm, animated by White Fox and directed by Toshiyuki Sone, with Kenta Ihara handling series composition, Miki Matsumoto designing the characters, and Ryo Kawasaki composing the music. was aired from July 6 to September 21, 2025, on Tokyo MX and other networks. The opening theme song is "My Way" performed by TEMPEST, while the ending theme song is "Bansōkō" performed by Miyu Kaneko. Crunchyroll will stream the series. Medialink licensed the series in Southeast Asia for streaming on Ani-One Asia's YouTube channel.