The authors' JSL program has included elementary school visits since 1993. This has been a great opportunity for JSL students to have real conversations outside of classes. However, the purpose of this activity for the elementary school has changed over time. In 2000, a class for “Integrated Study” was introduced and motivated the elementary school teachers to add a “learning about international understanding” goal to the visits. Changes were made to make the visits a full mutual learning project. In 2020, English becomes a regular subject for the fifth and sixth grades, thus it is time to reconstruct this project.