Sora kara inseki ga ochite kita. Tanchi no kekka, soreha mazarugasu to iu seimei-tai de, tainai ni kaosuuirusu to tatakaeru tokushuna kōso, kaosukimera o motte iru koto ga hanmei shita. Hokaku sakusen o kansui suru tame, seinen erītochīmu wa bōei-gun ni kaibutsu ni kigai o kuwaenai yō yōsei shita. Kaosu uirusu no yūwaku ni makete, kaibutsu wa bōei-gun no dan'yaku-ko ni ichi-po zutsu chikadzuite kita. Seinen erītochīmu wa funtō shitaga, sore demo tomeru koto wa dekinakatta. Saijō wa tebitesu 909 no hassha o meiji, kaibutsu no tainai no kaosukimera o hakai shi, kaibutsu wa kaosuuirusu ni tori tsukareta.
A meteorite fell from the sky. After detection, it was found that it was a life form named Mazalgas, which had a special enzyme in its body that could fight against the Chaos Virus - Chaos Chimera. In order to complete the capture operation, the Youth Elite Team asked the Defense Force not to harm the monster. Under the temptation of the Chaos Virus, the monster approached the Defense Force's ammunition depot step by step. Although the Youth Elite Team fought hard, they still couldn't stop it. Nishijo ordered the launch of Tebites 909, which destroyed the Chaos Chimera in the monster's body, and the monster was possessed by the Chaos Virus.
