Day One
Day Two
Day Three
Day Four
Day Five
You're done in by the same pattern as in "Just like a Tsubaki, Just like a Pomegranate".
During the 5th day, you're presented many times with the choice to go to the Sea Shrine, but
no matter when you visit, it seems you will receive a Bad End
The important thing is that the Sea Shrine seems to be the wrong place to go.