Before leaving.
In a large antique villa, a black and white piano stands in front of two 4.5-Year-old children.
"Xiao Xi, Xiao Xi. Teach me how to play the piano." 4-Year-old Xiao Shishi held up her lace skirt and held the hand of 5-year-old Yong Xi unsightly.
"Uh..." Xiao Yongxi doesn't know how to play it herself. How dare she embarrass herself here. "That's good. You wait until I grow up and I can play it to you."
"Well... Okay. Then don't forget that I'm here." Xiao Shishi raised her chubby little finger. Xiao Yongxi's little finger was hooked with hers, symbolizing an eternal vow.
They all laughed. Their childish laughter rippled in that warm room.
Xiaoxi, you must remember our agreement.