Two elves who were not supposed to exist in the world were born after being nourished by the spiritual power of all things. One symbolizes luck and blessing, the other symbolizes misfortune and despair. The elf that symbolizes luck cannot bring hope to everyone, while the elf that symbolizes misfortune only brings despair to itself.
The sophisticated, smart and beautiful sister x the low-key and introverted white rabbit brother
The younger brother only becomes well-behaved in front of his older sister. In fact, he has many other ideas, which will turn into nothing later.
There are two pairs of deputy CPs in this article, and the whole process is a bit sadistic but also sweet. The details will have to wait for future plot developments and may be modified.
Concept: Roses will wither, but true love will not.