|Hair||Brown and tan|
|• Professional information•|
|Affiliation|| Honnōji Academy|
|Occupation||Mankanshoku family's pet pug.|
|Uniform||Nudist Beach guerrilla uniform (temporarily, formerly)|
|• Personal information•|
|Family|| Barazō Mankanshoku|
|Allies|| Ryūko Matoi|
|Enemies|| Ragyō Kiryūin|
|• First appearance•|
|• Voice actors•|
|English||Derek Stephen Prince|
- “Guts, Gatsu!”—Guts
Guts (ガッツ Gattsu ) is the Mankanshoku family's pet pug.
Guts fits the overall description of a pug, being a pale cream in color with large eyes and a dark face. He is seen wearing a small light blue hoodie that covers his ears and his tongue is often seen outside of his mouth.
Guts is known for his eating habit. In episode 2, Matarō said that they named him Guts "because he eats with a lot of gusto", hence the name. He also has the ability to stand on his two hind legs, similar to the way humans do.
- His name is a pun on the word Gusto (ガツガツ食べる Gatsugatsu taberu ), given that he eats a lot.
|Allies||Ryūko Matoi • Senketsu • Mako Mankanshoku • Mankanshoku Family (Barazō Mankanshoku • Sukuyo Mankanshoku • Matarō Mankanshoku • Guts)|
|Nudist Beach||Sōichirō Kiryūin • Aikurō Mikisugi • Tsumugu Kinagase • Kinue Kinagase|
|Student Council||Satsuki Kiryūin • Junketsu • Ira Gamagōri • Uzu Sanageyama • Nonon Jakuzure • Hōka Inumuta • Shirō Iori|
|Club Presidents||Takaharu Fukuroda • Omiko Hakodate • Maiko Ōgure • Aizenbō Fuguhara • Maimu Okurahama • Masuyo Watari • Jack Naitō • Tatamu Otte • Kagesaburō Kagerō • Kusanosuke Yaguruma • Kusatao Uwabami • Tōki Brothers • Ryōsuke Todoroki|
|Revocs Corp.||Ragyō Kiryūin • Nui Harime • Rei Hōōmaru|