One day Akatsuka Justice (nicknamed Seigi), a boy with a strong sense of justice, saves a man from some street punks. But the moment he touches the stone given as a token of the man's gratitude, a strange pattern shows up on the palm of his hand. The next day, when Seigi is baffled to notice that the pattern won't disappear, a mysterious girl appears before him and demands to know where he got the tattoo before suddenly attacking him.
This is an air bomb made of 
high-density atmospheric air.
هذه قنبلة هوائية مصنوعة من هواء جوّي عالي الكثافة
Das ist eine Luftbombe
aus hochverdichteter Luft.
Es una bomba de aire hecha
de presión de alta densidad.
Es una bomba de aire hecha
de presión de alta densidad.
C’est une bombe à base 
d’air à haute densité.
Questa è una bomba fatta d'aria 
ad altissima pressione.
Isto é uma bomba de ar feita de uma
 grande densidade de ar atmosférico.