Ayame Sakami. The youngest of the Sakami siblings. She is from the same mother as Subaru. She is a year younger than him, 16 years old. Ayame is the light of everyone's lives. She was loved by everyone, even the three mothers.
But what happens after the mothers die? Ayame changes completely. She is no longer the cheerful, bubbly girl she once was, she is now the cold hearted and uncaring girl. Her brothers tried to reach her, but she locked them all out.
A young girl, named Yui, comes to the mansion as a sacrificial bride. She is a bright and cheerful girl who loves to make friends. Once she found out that the brothers only wanted her for her blood, she tried to talk to Ayame. Will she be able to open her heart? Will she become the light of everyone's lives again?
Nanami is the Sakamaki's younger sister. She's a year younger then Subaru but acts like a five year old. She has crushes on all of her brothers including her adopted ones the Mukami's. When Yui comes to live with them Nanami hates her and tries to stay as far away as possible. Let's see what happenes ne?