I'll Make a Habit of It(1994)

I'll Make a Habit of It is a comedy series following Shiratori Nagisa, a pop idol who craves the thrill of combat and martial arts. Desperate for action, she disguises herself as a schoolboy and enrolls at the toughest school she can find. There she develops feelings for a fellow student who has no idea she's actually a girl. Juggling her secret double life as both idol and student proves chaotic enough, but Nagisa must also fend off rival wannabe idols determined to steal her spotlight. As her wild world spirals into increasingly absurd situations, Nagisa discovers that keeping her disguise intact while chasing her passions might be her biggest challenge yet.