For Shin and Noe to f' around a little and help each other with whatever their problems are.
For Shin, Aiko, and Nobuse to work on fixing that train wreck. Involves Aiko realizing and accepting she'll never be with Shin. Aiko moving on with or without Nobuse.
For Shin and Hiromi to ultimately get together in the final ep after lies, misunderstandings, Drama, and Heartache.