Cartoon Girls Boxing Database

https://www.youtube.com/watch?v=DXD2KAM-2yg Band Studio Killers travel cyberspace to battle evil. Their social media manager is a boxing unicorn named Sparkle Punch. Only shown wearing gloves.

Hibari Oozaru, secretly born a boy but identifies as a girl, defends protagonist Kousaku Sakamoto after he is beaten by boxing club captain Mitsuo Kaji in a boxing match. The club coach images them as a female boxing champion. A quick match followed by a still image.