As Phantom continues to defeat Pretty Cures across the world, Megumi worries that Phantom is too powerful for her and the others to handle. Deciding to put it behind her for now, Megumi and the others help out Mao's class, including a superhero obsessed classmate named Takuma, on a trip to the beach to collect clams. As the group help Takuma search for clams, with Takuma later helping out others, they are targeted by Oresky, who summons a Clam Saiark. Spurred on by Takuma's hero spirit, the Cures overwhelm the Saiark and save the day, allowing the kids to enjoy their spoils.
Note: The HappinessCharge PreCures celebrate the 500th episode anniversary.
今日は子供会の潮干狩り！ ヒーロー大好きの卓真くんは、今日もお面をかぶって大ハッスル。いつもは空回りばかりだけど、貝がとれないえりちゃんを助けたり、本当は頼れる優しい子。なのに、そこへオレスキーが襲ってきて…!?
