The urban legend of the 4:44 ritual consists of using a radio player to produce frequencies in front of the Akeyuki Sacred Tree at exactly 4:44, transporting people to a different dimension. When Asuka Tsuchimiya and her friends—Nana Nanase, Mia Silverstone, Yuu Tounaka, and Chloe Morisu—decide to perform this ritual as an activity of the Crystal Radio Research Club, they are shocked when the ritual works. The five travel to a parallel world, known as a fragment, where they meet an unsettlingly familiar girl—Asuka's parallel-world self. This Asuka is dubbed as Seriouska due to her serious attitude and capability to fight. Seriouska tells them about the great danger that faces all the parallel worlds, the Twilight. As it strips the parallel worlds of all of its possibilities, Seriouska seeks the death of the man behind the Twilight, the Twilight King, to stop his onslaught over the multiverse. Akanesasu Shoujo follows the five girls as they learn to accept their true selves, all the while searching for the Twilight King. However, the solution to the invasive Twilight might be closer than they think.

An action comedy including parodies of tokusatsu monster/hero genre, such as "Godzilla" and "Ultraman." A time-space conditioner from the future, Miraiman, suddenly appears before the Nohara family, and he requests the family to fight against giant monsters who appear from time-space distortion one after another, in order to save the world from destruction. Every time monsters appear, Shinnosuke's parents, father Hiroshi and mother Misae go to the world three minute later, transform themselves into righteous heroes and defeat them within the time limit of three minutes. Hiroshi and Misae become wrapped up in getting rid of monsters, and Misae stops doing the housework. Then, a strong monster appears, and he cannot be defeated within three minutes. Shinnosuke rises up against the monster.

A major incident has occurred in the peaceful Sky Land!? The young Princess Elle has been kidnapped by the monsters of Underg Empire! A brave young girl, Sora, follows the princess through a mysterious hole. "TV"? "Cars"? Are those some kind of magic tools!?!? But there's no time to be surprised! She has to get the princess back to the castle...! Flying between two worlds! The adventure with the Pretty Cure begins now! It's hero time!

Episode 0 of Gatchaman Crowds Insight to be streamed on Hulu before the airing of the main series.