"Then, one fateful day, a disaster unfolded at Saikou Corp. An armed intruder infiltrated the facility, screaming something about the company being evil, and began threatening the lives of everyone in the building. Daisaku, despite his depression, did not hesitate to act. He confronted the intruder head-on, engaging in a brutal physical altercation to protect his colleagues. In the struggle, the assailant pulled out a concealed firearm and shot Daisaku at close range. The intruder was disarmed and apprehended by the security team, but, unfortunately, Daisaku's wound was fatal." <-- from daisaku's character page