Abstract
This paper examines the learning process for the awareness-raising task of the environment that determines the readings of Kango words of Chinese origin. This task is designed to encourage learners to be aware of Kanji sound alternation rules on their own. The target of this study is Kango words including "b" sound, and that is following Watabe et al. (2015) which focused on "h/p" sound alternation. We found that learners 1) confused rules from the effects of the previous task, and 2) used specific known words rather than rules. From these observations, we discuss what kind of improvement is needed on Kanji sound task.