Retired Human Saint King Ethan Lyons struggles with adjusting to peaceful retirement while sharp splinters on a chair irritate him. His companion warns him to relax, but a sudden red sky signals a disturbance: a world-ending Desolation Demon God is causing chaos nearby. Ethan detects the demon god's energy at the Sunset Retirement Home but manages to dissipate it unexpectedly, restoring peace. This draws unwanted attention, and a desperate presence tries to claim Ethan's tranquility. Ethan demands order, warning intruders to behave or leave. He is rewarded for sheltering a family member seeking peace with a new building, the Tranquil Garden, promising gradual healing.