In the fourth chapter, after resting up for the night, Alisa and Nozomi tried again and went back to the same place they fought that monster and tried a different approach. This time, Alisa went the other side and soon realized the monster won't fall for the same trick twice. She then climbed up a tree to get a clear look of her surroundings before dropping down to a safe point. Nozomi told Alisa to go to the waterfall since the monster cannot swim despite the fact it can drink pure water. Nozomi explained that she noticed that those monsters drown in the lake after taking a peek of the ones behind their target. Alisa decided to go with that plan and just when it almost attacked her, she pushed it into the waterfall after stabbing it, it screech in pain as it fell down to the lake. Alisa was amazed that it worked and should have done that the first time though.