An Orphan Girl with a Fat Brother

She is a descendant of a family of traditional Chinese medicine in the 21st century. After time travel, she wanted to rely on her unparalleled medical skills to change her status as an orphan. It's just that Yan Ran didn't expect that the man who accidentally saved her would always be around her from unknown time, and even pay special attention to her younger brother. Moreover, he strongly begged for marriage and said that he wanted her to have enough food and clothing for the rest of her life without any worries... She joked that after Yanran had space, she could have no worries about food and clothing. As for not having worries, how could anyone do it. It's just that Yan Ran didn't expect Zong Qi to really do it. No matter what she thought of or not, this man would do it for her in advance.