平凡的大學生野本裕也，與神秘少女瞳相遇了。在沒有人煙的廢棄場，野本目擊到了她變成野獸的模樣，與獅子怪物展開死戰的一幕。他們的真實身份，是同時擁有人類的頭腦與野獸的獠牙的「獸鬥士」。並且，瞳是隱藏着最強鬥爭本能的獸鬥士「蜜獾」。獸鬥士們被自古以來支配日本經濟的四大財閥三門、八菱、角供、石田所僱傭，並作為其代理人展開決鬥，爭奪霸權。之後，野本通過再次與瞳相遇，被捲入了這些獸鬥士們的熾烈戰鬥「牙鬥」當中——。
平凡的大學生野本裕也，與神秘少女瞳相遇了。在沒有人煙的廢棄場，野本目擊到了她變成野獸的模樣，與獅子怪物展開死戰的一幕。他們的真實身份，是同時擁有人類的頭腦與野獸的獠牙的「獸鬥士」。並且，瞳是隱藏着最強鬥爭本能的獸鬥士「蜜獾」。獸鬥士們被自古以來支配日本經濟的四大財閥三門、八菱、角供、石田所僱傭，並作為其代理人展開決鬥，爭奪霸權。之後，野本通過再次與瞳相遇，被捲入了這些獸鬥士們的熾烈戰鬥「牙鬥」當中——。
Background Art (Studio Wyeth)
Key Animation (ep 2)
Producer
Planning
Key Animation (ep 2)
Producer
Planning
Planning
Art Director, Background Art (Studio Wyeth)
Key Animation (ED)
Storyboard (eps 4, 12), Episode Director (eps 1, 4, 12)
Key Animation (ep 8)
Theme Song Composition (ED), Theme Song Lyrics (ED), Theme Song Performance (ED)
Character Design, Chief Animation Director (eps 1-2, 4-12 even), Animation Director (OP)
Key Animation (OP)
Key Animation
Animation Director (eps 6, 11)
Theme Song Performance (OP)
Original Character Design
Producer
Key Animation (ep 6)
2nd Key Animation (ep 7)
Background Art (Studio Wyeth)
Script (eps 2, 6, 10)
Script (ep 9)
Key Animation (ep 11)
Production Manager
Script (ep 7)
Color Design
Editing
Theme Song Arrangement (OP), Theme Song Composition (OP), Theme Song Lyrics (OP)
Sound Effects
Director
Episode Director (ep 6)
Storyboard (eps 1, 3, 11-12), Episode Director (ep 1)
Animation Director (eps 8, 12)
Animation Director (ep 10)
Producer
Background Art (Studio Wyeth)
Background Art (Studio Wyeth)
Background Art (Studio Wyeth)
Background Art (Studio Wyeth)
Storyboard (eps 2, 9), Episode Director (eps 2, 9, 12)
Series Composition
Animation Director (ep 3)
Sound Director
Original Creator
Character Design (Character Design Assistance), Chief Animation Director (eps 3, 5, 7, 9, 11-12), Animation Director (ep 1)
Music
Amamiya is kawaii!
完結散花～～好看！