Aonuma Shun became a karma demon and welcomed death, but death is not the end of everything. If you give up human emotions and ignore life, you can control the curse that keeps leaking out, but you will eventually become a demon; if you retain the human emotion curse, you will eventually lose control and choose to die alone. No matter which side, the final outcome is only death. The time until death repeats itself like a broken clock, and there is always only one way to escape reincarnation - to create a new world.
Watanabe Su (son of early season Wakaku) vs Aonuma Shun