Although they are not related by blood, they are so close that their biological siblings would envy them.
Although they are biological brothers, they are as close as guests, so unfamiliar that they almost forget about each other.
Even though she didn't want to lose him so much, she still pushed him to others with her own hands
Although she swore that she would never betray her in her life, she still gave her the most fatal wound.
Although their friendship was as sincere as snow, in the end everyone's hearts were shattered.
Everything is involuntary