Natsume appeared for the Soft On Demand adult video company as the host of their AV Awards ceremony at Tokyo's Shinjuku Century Hyatt hotel on November 26, 2003. Her debut video, entitled simply "Debut", was released in January, 2004. Sexually conservative and inexperienced, Natsume notes of her first video, "Just how embarrassed I look during the entire thing." She says her first experiences with both "paizuri" and masturbation occurred during AV shoots. One of her videos, "Final Pussy!", released in January 2005 is notable for its science fiction theme. Directed by Noboru Iguchi, Natsume plays a dangerous woman who is the result of a military experiment gone wrong. When she is sexually aroused, guns burst from her breasts, killing her partner. Special makeup effects were by Yoshihiro Nishimura, well known in Japanese "gore" cinema.