After Traveling Through Time and Becoming Cannon Fodder, the Heroine Really Shouldn't Chase Her!

Chen Tian, ​​who sacrificed his life for a righteous cause, lived again with his memory. Calm and stable. I thought I would live like this forever, but gradually I realized that something was wrong. I didn't know that I was in a novel until it was confirmed. "Did I wear a book when I co-authored it?" Other people who wear books are either men or mainly male supporting characters, but I am really cannon fodder... I was thinking about how to escape, stay away from the female protagonist, and avoid being targeted by the male protagonist. But... Why is the heroine Mao proposing marriage to my family? ———— My name is Xia Qingran. I traveled back to high school on the day of my wedding to Shen Hao. Maybe God asked me to make up for not seeing my grandma for the last time. I must protect grandma this time! But I accidentally discovered that I could actually eavesdrop on the voice of that person named Chen Tian? He said that he was the heroine, his world was a novel, and his fiancé Lin Qinghe was the hero. He also said that Lin Qinghe was actually a petty, white lotus, and scheming bitch?