N5 is the basic level of Japanese language which starts from the introductory level of Japanese which involves Japanese greetings(Aisatsu)
This level includes the grammar part of Japanese which helps in speaking and making sentences, it involves particles.
At this level students are able to read and understand written materials in Japanese about various emerging topics.
N2 is a pre-advanced level which helps students become more confident while communicating in Japanese Language.
This is the last level of Japanese which makes a person an expert in Japanese and he/she can apply in any Japanese firm with a great package.
The key factor of TLS is the Conversation (Kaiwa) classes which helps the student to become more profound with the language.