The Battle Between Love and Hate! Seiji vs. PreCure! - S1.E46

Seiji, controlled by Red's crystal, attacks the Cures, who attempt to break the crystal only to find themselves pushed back and overwhelmed by his power. After explaining that his crystal only allowed Seiji to embrace the hatred he now bares towards Megumi for her failure to realize his feelings for her, Red uses his power to send a large red planet crashing towards Earth while legions of Red Saiarks spread across the world before he and Seiji take their leave. Just as Megumi feels helpless, blaming herself for not understanding Seiji's feelings, Maria arrives just in time to protect her from a Saiark, reminding the Cures not to give up so easily and instead use their desire to save those they care about to gain new strength. With the other Cures from around the world giving them encouragement, the HappinessCharge Cures stand up once more to beat the Saiark before setting off to the red planet to confront Red and rescue Seiji.