for her sisters and being a pro at detecting akamushi. Her specialty power is touch, and she is able to read and acquire much information simply by touching living things. Her fighting style is to use the green kemurikusa to manifest electric powers. Like Wakaba, Riku is very interested in finding and learning about kemurikusa. Most likely due to her power of touch, she was the only sister who figured out how to unlock the powers of the various kemurikusa, and teaches Wakaba many of these tricks when she meets him. Riku's ONA character and design is drastically different from her anime counterpart. In the ONA, she wears a full black bodysuit, pink mary janes, and ties her pink hair in six braided pigtails (three on each side of her head). Her teeth are sharp in the ONA, and she is shown to have slightly aggressive behavior when separated from her sisters. The oldest of the six sisters, presumed to be dead when the series begins. She appears near the end of the series on Island 8 to help fight the red bugs. She has magenta hair tied into a single braid, and wears a black sleeveless qipao with magenta embroidery. Her specialty powers are having a strong sense of smell and exceptional strength, though she claims Rin is actually stronger than her. She battles the red bugs using a pipe with kemurikusa tied to the top. Her personality is very easy-going and laid back, though she loves to fight and gets very excited just by the thought of it. However, she is also a bit of a pacifist, and used to urge the sisters to fight with their own skills rather than relying on the green kemurikusa. She admits to Wakaba that she is actually dying due to some permanent weakness after fighting Nushi, extremely large and hostile versions of the red bugs. Ryo was the original vessel for the Memory Leaf, but later transferred the leaf to Rin to help her get stronger. After this, she began sharing bodies with her sister Ryoku to conserve energy. The youngest sister with glasses and long hair. She has the ability to share bodies with Ryo. A small, benevolent white bug that is loyal to Wakaba and assists the sisters on their journey. Media ONA The series was originally released as a two-part original net animation (ONA) between 2010 and 2012.