If cost is a barrier, consider these legitimate options:
: The 日本語の森 (Nihongo no Mori) YouTube channel is frequently recommended as a high-quality visual supplement that often follows the SKM order. Comparison at a Glance Shin Kanzen Master Nihongo So-matome Pace High-intensity, chapter-based 8-week daily schedule Language Primarily Japanese Multilingual translations Depth Very thorough, best for mastery Good for quick overviews Difficulty High; better with a tutor Accessible for self-study shin kanzen masuta n2 bunpou JLPT | PDF - Slideshare Shin Kanzen Master N2 Grammar Pdf Extra Quality
Note: I cannot locate, link to, or verify any specific “extra quality” PDF, as that likely violates copyright. The analysis above is based on the legitimate, publicly described content of the SKM series. If cost is a barrier, consider these legitimate