Siheyuan: Xu Damao's Older Brother, Merged with Yan Shuangying

After transmigrating into the Beast-Filled Courtyard House world, Xu Nian became the long-lost older brother Xu Damao never knew he had! His parents thought his original body was frail and sickly and feared they couldn't raise him, so they abandoned him shortly after he was born. Unexpectedly, a soldier adopted him and passed on a lifetime's worth of combat experience. During the great war of resistance in the 1950s, his original body fought bravely and became a meritorious servant of the nation. But in the final battle, he suffered a head injury and died. When he woke up, someone else had taken over his body: Xu Nian, from a later era! He then awakened the Yan Shuangying template, gaining some of Yan Shuangying's abilities from the start! As his integration progress increased, he would gradually acquire all of Yan Shuangying's abilities! After the war, many enemy agents remained in Forty-Nine City, waiting for a chance to wreak havoc and disrupt public order. Entrusted with his father's dying wish, Xu Nian was called upon in a time of crisis and assigned by the State Security Bureau to go undercover in Forty-Nine City and capture enemy agents. During his mission, he also had plenty of encounters with the people in the courtyard house. Xu Nian: Silly Zhu, I bet you can't hit me with that punch. He Yuzhu: I don't believe you. Unless you stick your neck out and stand still so I can hit you! Watching He Yuzhu lie there, bruised and battered but still refusing to admit defeat, Xu Nian smiled...