The Only Mortal in Heaven — Episode 4: Now the Angel Wants Him Too

Episode 4 belongs to the angel. She turns up at sunrise carrying clean clothes, blushing, and turns her back outside the door while William changes. Then she offers him a stroll, on one condition: he never leaves her sight. When he wants to know what to call her, the reply is just 'Angel.' Fingers laced, the pair climb through halls of white marble toward the home of the angels, and two demons murmur behind them about the human.

The demons' side lies further down, and Angel would rather he forget it. Then her confession comes out: the touch from yesterday sent mana pouring into her, a huge amount. Mana keeps her kind alive, the same way meals keep him alive. Food again, William thinks. At last she brings him to their most sacred spot, a shining basin of light, and William starts coughing.