Lin Wanwan is optimistic and upbeat, a little ray of sunshine with a bit of cleverness and a love of food. She is kind, resilient, and adaptable. An ordinary modern office worker, she unexpectedly transmigrates to the 1970s and becomes an orphan. Her family background is respectable, but she has nothing. Her goal: to adapt to the harsh times, use the System and her own abilities to survive and build a better, happier life, and protect her love with Gu Huaishu. Gu Huaishu is handsome, with a cool and refined air. He seems aloof and taciturn, but is gentle and modest inside. He is principled, intelligent, protective, and reserved yet devoted in love. He comes from an intellectual family in Beijing. His parents have been caught up in political turmoil, and he goes to the countryside either to escape trouble or in keeping with the spirit of the times. He is knowledgeable and thoughtful. He goes from being curious about Lin Wanwan to falling deeply in love with her, and longs to create a safe haven for her and plan their future together.