"When Grandfather died, you were there. You knew my true intentions, yet you still favored him and even repaid evil with good! You forced me to take the blame! So I wonder, between me and him, who is truly your biological son",Even more so, his grandfather used his military achievements to secure a title for him. Otherwise, with Gu Yun's capabilities, it would be impossible to be awarded a title.,So, how can one bear the burden for a seriously ill elderly person。