I finally entered the forest after calling Diana beautiful for a thousand times and making her pass out. However, I did not find anything in the forest and learned that even non-violent tactics can take a great toll on me - like, losing my voice.
I also gained something; Moriarty smiled at me in the way she did before. Right. I should find that lost piece of memory so that she can smile at me again.
It is just the beginning of a grand adventure.