In 2026, an ordinary modern girl accidentally time-travels back to 1999, where she meets her grandmother who worked hard to make a living in her youth. Relying on her advanced knowledge, she accompanies her grandmother, starting from a small fabric stall. Along the way, they deal with neighbors' gossip and business challenges. Relying on each other, the grandmother and granddaughter run the fabric business attentively, gradually growing the small stall into a clothing store. In the simple old days, they work hard together to make ordinary life better and better.