Level III introduces kanji and starts with a review of hiragana and katakana. Part 1 focuses on reading and writing kanji before moving into the textbook in Part 2. Topics include, but are not limited to, planning a trip, talking about past experiences, and getting advice. Part 1-3 sessions of each level should be taken sequentially as a series. Each level has 3 parts (Part 1, Part 2, Part 3) which should be taken sequentially before you can move on to the next level.
Level IV, the concluding level uses a more complex sentence structure and introduces new kanji and a review of kanji from previous levels. Topics and grammar points include, but are not limited to, using quotations, expressing potentiality, and making hypothetical statements.