The Neres Empire discovers from past combat data that the Angel Rangers' fighting power decreases when their battle suits become dirty. Exploiting this weakness, they target Yellow—the ranger whose combat style makes her suit easily soiled—aiming to annihilate the Angel Rangers. During battle, dirt gradually accumulates on her suit, putting Yellow at a disadvantage against enemy soldiers. Attempting to retreat, she instead falls into a trap filled with sticky slime, her suit becoming increasingly soaked and filthy. More viscous fluid pours down, completely drenching her battle suit and leaving her in dire straits! However, she undergoes an enhanced transformation into Super Angel Yellow, scattering enemy troops with renewed strength—only for a contamination kaijin, created based on her own data, to appear. One crisis after another strikes as filth overwhelms her. This is Angel Yellow's greatest peril! [BAD END]