صدای مشترک

During times they sat and talked, Mari revealed that Zai and Higan had practiced together since they were small. Since when, they had become two very special people to her. However, Emma from that time also started to worry; if they became too attached, emotions would easily arise, because after all, emotions are what kill a ninja. The two sisters became closer and closer, until Mari decided to teach Emma her secret technique. It turned out to be the piercing move that puts the body into a state