The remaining Neutral End is gained by ending up on the Apathy Path. To do this have Violo at +3 and Vivere at +2. To raise their values, click the bottom answer. To decrease their values, pick the top. Once on the apathy path, focus on raising their values to 5. You should then unlock the ability to stay for a brief time.
For the second row of Dead Ends, you need to enter the scene where Vivere is in the garden with different values for Violo & Vivere. For example, having Violo at >= 6 and Vivere at >= 0 and <= 2. Mixing and matching these values should unlock that dead end. For example, have Violo at -3 and Vivere at 3 for one, Vivere at -3 and Vivere at 3 for another run. You need Violo at -1 and Vivere at 3 for one, reverse that for the other. You also need Violo at -1 and Vivere at 6 for one, then reverse it for the other.
For the third row of Dead Ends, when in the cell, save before each choice and pick the one that gets you killed. Then reload, survive that encounter, and repeat at the next conversation.



