This study aimed to encourages learner’s languages through a Japanese class practice for university students. In order to do so, students conducted a comparative reading of two works in which foreign children appear. And to teach the students to read about the characters’ relationship with language and with others around them. This is because the students can expand their thinking by connecting real world problems with the life stories of foreign children who are depicted as others in the world of the works. In this practice also aimed to develop the learners’ meta-linguistic ability by using the philosophy of plurilingualism as a methodological framework. By experiencing the existence of a variety of languages that cannot be explained by a monolingualism view of language, students can become aware of the diversity of languages in themselves and their surroundings. As a result of the practice, it was found that the students acquired an attitude of deep introspection about their own language experience and identity, as well as about their own internal language and relationship with their surroundings. In addition, the expression of words with unique meanings for each student revealed the aspects of the learner’s language that can serve as a resource when living in society as a vehicle for language life.