[DeepL Translation - needs review] *This product is suitable for reading on a tablet or other device with a large display. In addition, functions such as magnifying only the text, highlighting text, searching, referring to dictionaries, and quoting are not available.
This self-published book, which became the talk of the town with "3-Month Improvement Method" and sold out immediately after its release, is now available from Genko-Sha!
This book is a definitive, easy-to-understand, systematic...
