Kagutsu Crater Incident

The Kagutsu Crater Incident refers to the Damocles Down of Genji Kagutsu 14 years prior to K and K Return of Kings' events.

History
After failed attempts by the previous Blue and Grey Kings, Genji Kagutsu's Weisman Levels went out of control, resulting in his Sword of Damocles falling. This resulted in a catastrophic event documented as the Kagutsu Crater Incident, its name originating from the massive crater left behind by Kagutsu's Damocles Down.

Impact
With a span reaching 100km, that spread from the an area centred around the southern Kanto region, the Kagutsu Crater is the largest Damocles Down in recorded history, and ended in drastic changes to Japan's topography and its economy, which the latter was corrected later by the Gold Clan Timeless Palace and the Gold King Daikaku Kokujōji. The event led to over 700,000 deaths including those of both Genji Kagutsu and his clan RENGOKUSHA, Seigo Otori's Clan Cathedral, numerous Scepter 4 Clansmen , and the neighbors, friends and family of Nagare Hisui. The Damocles Down was intentionally done by Genji as an attempt to disrupt Jin Habari's own Weismann levels and create a chain reaction off of the kings. In order to avoid a second Damocles Down, his his lieutenant slew him.

Many survivors found help in relief teams, including Neko, whose Strain abilities manifested after the crater occurred. Some even speculate that the Damocles Down triggered a sort of "catalyst" in the population of Strains.

Similarly, Nagare Hisui's role as the Green King manifested, ultimately saving him from death, along with being nursedback to health by Tenkei Iwafune.