When Ken feels better, he receives a letter from his mother in America. It is airmail (). She sends him a sweater. He is happy. Later, Ken goes to the ginkou (bank) to exchange money ( ryougae ). He needs Japanese yen. He stands in line. He waits for a long time.
The (MNN) textbook series is widely considered the "gold standard" for beginners learning Japanese. Lessons 1 through 25 cover the fundamental vocabulary and grammar required for the JLPT N5 level , the first proficiency benchmark for learners. Key Content Overview (Lessons 1–25) minna no nihongo lesson 1 to 25 vocabulary pdf extra best