Many foreign students choose overnight shifts because their permitted working hours are limited. Among the jobs discussed by foreign residents, convenience store work stood out as especially popular. Workers said convenience store jobs helped them improve both everyday Japanese and formal polite expressions. The Myanmar employee said his long-term goal was to use the experience gained in Japan to open and operate a convenience store himself. For foreign students in Japan, part-time work is often essential for survival, requiring long hours, severe spending restraint and repeated efforts to overcome language barriers.