"Marugoto Starter (A1)" is a coursebook designed in such a way that both the language and culture can be studied. In particular, with the purpose of furthering the understanding of characters, vocabulary, grammar, and sentence patterns, "Rikai: Coursebook for Communicative Language Competences" responds to the needs of learners who can already use Japanese, but wish to systematically study its structure as a language, as they do not understand it well. It provides a completely new way of learning Japanese that allows learners to fully understand when, where, and with what feeling to use patterns and expressions through full-color photographs and illustrations and audio learning materials. Learners who open "Marugoto" will surely want to learn more about Japan and become even more fond of the country. For those who wish to study Japanese comprehensively and continue learning it in the future, we recommend learning with the use of both "Katsudoo: Coursebook for Communicative Language Activities" and "Rikai: Coursebook for Communicative Language Competences."