Mei's Links
Like a brother to her. She's often tough towards Shula but only because she cares deeply about them. Shula is the one she feels like she can truly rely on and show their vulnerable side. They've both gone trough the thick and thin together.
Like a sister to him. They would often bicker about one thing or another but would literally do anything for her. Both most likely to get up all sorts of mischief as well.