Since this is a visual novel with multiple endings based on your choices, a walkthrough is the most helpful tool.
: These are the standard tools for extracting these file types. Onee-san_to_Amaero_Milk_Kissa.7z
: This is the gold standard for Japanese visual novel guides. While the site is in Japanese, you can easily use browser translation to follow the choice trees for specific character routes. Since this is a visual novel with multiple