about that kuji, basically just roll everyday. log in to mynintendo account for 200 coins.
each day there'll be different set of character, determined by their orb colour.
schedule:
red: 28/4, 2/5
blue: 29/4, 3/5
green: 30/4, 4/5
white/colourless: 1/5, 5/5
all: 6/5, 7/5
the schedule just affect the characters for you to get its wallpaper.
as for the roll itself, there's 4; small luck (小吉
, medium luck (中吉
, big luck (大吉
, and bad luck (凶
big ones will contribute to feather count, while I assume small & medium for orb. no idea about bad luck ones tbh
only for the wallpaper for you to keep