Setting 1: My sister is a tsundere
Setting 2: The elder brother is the sister-controller
Setting 3: The younger sister has delusions
Setting 4: The C market is in a state of dissipation and wealth
Setting 5: Brothers and sisters depend on each other for life
Setting six: Brother is always available
Setting 7: My sister has bad luck
Setting 8: Sister God Logic
Setting 9: The younger sister has a unilateral quarrel
Setting 10: Brothers and sisters are close! ! !