Talk:Shizune Hakamichi/@comment-122.107.63.18-20120802121656/@comment-1387259-20130119164712
From Katawa Shoujo Wiki
The last choice (This is solely through use of Gamefaqs, as I have not finished this route) is what decides what happens.
The option "Refuse" gets you the good ending
The option "Comfort Misha" gets you the bad ending