Unknown former band forms.
★JACK★ forms by Tetsuky and Ryo in Osaka (大阪)大阪.
1st LIVE is held.
Drummer Kenta joins.
Guitarist Hiro secedes.
~Life And Death Tour Vol.1~ begins.
TOUR ~Life And Death Tour Vol.2~-Desperate for 5- begins.
TOUR ~Life And Death Tour Vol.3~ begins.
Guitarist Kazu joins.
TOUR ~Life And Death Tour Finale~ -Steadiest Starting Five- begins.
Guitarist Kazu secedes after the live at Shinsaibashi BIG CAT.
Guitarist Chika. joins.
★JACK★ indefinitely pauses activities