The Girl in Twilight - S01

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