Bai Yutang can't count how many celebrations they have this year since the babies come to this house.
Three months' ceremony including a welcoming party for them, an exquisite lunch party to celebrate Bai Jingting's first teething, followed by an afternoon tea party on Jian Ying Yue's first teething.
Another lunch party when they could sit for the first time. Another afternoon party when Jian Ying Yue could say 'dada' and 'nana' for the first time. And many many more small occasions which clearly don't count as small for Lin Caihong.
Bai Yutang and Jian Kang Lu had agreed to not use little father and big father to differentiate themselves as Zhen Guo suggested. Jian Kang Lu also firmly rejects using young daddy and old daddy as Sun Hongjia suggested. They agreed to use daddy to call Bai Yutang and father to call Jian Kang Lu.