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A cartoon character in a grey cap and black clothing holds a spray can, creating a red graffiti tag that reads "THE NOTCHACK" on a dark wall. The scene transitions to a digital interface with a grid background, where text about a character named "IF" appears, followed by the name "HATSUMI SEGA" and a blue-haired anime girl with cat ears, identified as "Amnesiac Girl," who is shown in a series of stylized poses against a geometric, starry backdrop.