After Jean and Rico finished a mission regarding of the past, Jean and José went off for a short break with Rico and Henrietta. They visited their old home, but yet Jean first recalls back of old memories of their younger sister, Enrica, who died in a terrorist attack. Yet memories of her spirit dwells in this trip in jealousy of José's love for Henrietta...

Source: ANN

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Prequel: Gunslinger Girl: Il Teatrino