7 seven (セブン) forms.
Guitarist KENZO joins. NAO begins as support drummer, but officially joins after only one studio session.
Secret first live is held.
First anniversary tour, ESCAPE TO THE SUN, begins.
Wake up to the emotion / Suicide love / BANK / WOLF MAN / Sorry / Prologue / TOPAZ no Yubiwa (TOPAZの指輪) / ESCAPE / (new song) / SO BLUE / GOOD LUCK / KuroI HanaBIRA (黒イ華ビラ) / [EN] Can't stop my love
Tour final is held.
Tour, SUBLIMINAL SUMMER TOUR 98, begins. A limited edition pamphlet + CD set is sold throughout the tour. A seven-volume “information demotape” is freely distributed through sections of the tour.
5-day sponsored event, MEGA DANCE 5 days, begins.
5-day sponsored event ends.
Oneman is held.
Tour final oneman is held.
Two-day sponsored event, MEGA DANCE 2DAYS, is held.
Two-day sponsored event, MEGA DANCE 2DAYS, is held.
Oneman is held. Tour, PSYCHO SCREAM TOUR 1998~1999, begins.
Sponsored event, MEGA DANCE X'mas, is held.
Tour final oneman is held.
2nd anniversary tour, FUTURE KILL '99, begins.
Tour final oneman is held.
First in a three-month oneman series is held.
Second in a three-month oneman series is held.
Last in a three-month oneman series is held.
Oneman is held.
Five-day sponsored event, MEGA DANCE 5 DAYS, begins.
Oneman is held.
Oneman is held.
Oneman is held.
Oneman is held.
Oneman is held.
Two-day oneman begins.
Tour, BLOODY 20th WORDS, begins.
Tour final is held.
Oneman is held. The band announces they will disband in May.
7 seven officially disbands
One day revival oneman GHOST SCREAM 2023 is held
7 seven was a visual kei band. They were part of the kote kei subgenre. They were active from 1997 to 2000 and are now disbanded.