The authors introduced a summary writing activity with a peer-learning technique to an advanced Japanese as a second language class. After this activity, a survey was administered to the students. The results of the survey show that the students were, by and large, satisfied with this activity. However, some issues were brought to light, which led to certain points that needed to be improved. This paper discusses some techniques you could use to avoid the pitfalls of the peer-learning activity which we found from this survey.