When purchasing either of the “Genki” textbooks, make sure that you are purchasing the second edition.These do appear in the “Genki II” textbook, but can also be studied online if you don’t wish to purchase “Genki II.” Note: These are the “ ~mae ni” ( ~前に) and “ ~te kara” ( ~てから) patterns. Regarding “Genki I” and grammar there are two most notable grammar points that may appear on the N5 and are not introduced or included in “Genki I”. Thus, it is always best to err on the side of learning too many rather than too few words when studying for the N5 or any JLPT level. While they probably include all or most words that will appear on the tests, they are not guaranteed to be perfect. This includes all levels of the JLPT and .uk lists. Keep in mind that most JLPT kanji/word lists are unofficial. Be sure to study any items with which you are unfamiliar. So once you have studied “Genki I” in its entirety you may want to glance through lists of recommended N5 words and kanji on a site such as .uk. The kanji/vocabulary used in “Genki” may not have a 100% overlap with the kanji/vocabulary that can appear on the N5. If you complete the “Genki I” textbook, you already have the introduction to nearly all of the vocabulary, kanji, and grammar that you need to pass the N5. But it is perfectly usable by post-college adults and high school students as well. Its vocabulary is somewhat geared towards college students. “Genki I” is one of the most comprehensive and well-written introductory-level Japanese textbooks out there. And, because beginning to learn a new language can feel intimidating, the N5 and N4 tests can be helpful as the first two benchmarks to aim for. The N5 and N4 tests can be useful as a way to describe one’s level of study to prospective classes or teachers. To pass JLPT N5 you will need a vocabulary of about 800 words. And you will need to be comfortable reading the hiragana alphabet, the katakana alphabet, and about 100 kanji. The N5 is the first level of the Japanese Language Proficiency Test (JLPT).