An orphaned Halovian along with his sister as his only family. As Halovians are immense empaths, they made a similar promise to each other to find a way to ease human suffering and to create paradise, a place of true equality without suffering, particularly for the poor, ailing and weak. Sunday used to be the Dream Master of a political paradise called Penacony, a grand intergalactic hotel that allowed you to sleep in its premises, bringing you to a dreamland where 'anything' can be desired and achieved.
It turns out to be flawed as the dream turns out to be harvesting people's wills to live outside of a 'sweet lie', and Penacony itself charges exorbitant rates to exist on the premises, with people committing trafficking, robbery, etc to stay. He eventually makes the decision to choose to trap people within the dream itself as an extreme protectionist measure - to rob people of free will to decide their fates in order to protect them from harsh reality. He is eventually deposed, and now travels with the Astral Express/cosmos to find another solution his and his sister's altruistic dream and meaning of life, along with the answer to his philosophy.
A previous lordling dreammaster of a planet very similar to the Golden Peacock, and a jaded altruist, an empathetic, bleeding heart dove all the way down - Sunday's still looking to broaden his horizons and to seek the elusive miracle of a place completely free of suffering, for the weak and poor - truly equal.
Sunday has a bunch of mindjacking/emotional manipulation/truth seeking, past-uncovering abilities. If you'd like to consent as such for dev or CR purposes, let me know. He's also kind of a picky pain in the ass with a ramrod stick of Victorian Ankle Values with regards to nsfw, so I'd like to plot first before things get spicy.
His tattoo is on his lower back, inbetween the space of his wings - black diamonds that feather out.