Suzuki-san and wiser / older characters of the Shenmue series have hinted that this isn't necessarily a game about revenge as much as it about a young man's personal growth. With that said, watching his father get killed by Lan Di is what drives Ryo to embark on his journey. After Ryo speaks with Yuanda Zhu we find out more about Lan Di (like his real name, his father's connection to Iwao) and how Lan Di in his own way was seeking vengeance for the murder of his own father (which he believes Iwao is responsible for).
With the progression of the story and what has been hinted at by Yu Suzuki, do you think Ryo will allow Lan Di to survive?