Rui is a kind and funny boy who is also quite laid-back and calm. He invents and innovates stuff at times, leading to him being extremely unpredictable. Tsukasa is a bold and loud boy who can be quiet when need be. He claims he is fearless despite being jumpy at times. Nene is a kind but silent girl who isn't afraid to be blunt. Similat to Tsukasa, she can get startled easily. Emu is a kind and excited girl who acts really happy and seeks nothing but smiles. She can be extremely naive, however.