[Spoiler] "A Pledge to God" Han Chae-young Asks Bae Soo-bin for a Second Child

On the latest episode of the new MBC weekend drama "A Pledge to God", Han Chae-young asked her ex-husband Bae Soo-bin for a second child to save their first sick child.

The drama began with Seo Ji-yeong (Han Chae-young) summoned to court to be tried for a scandal.

The story rewound to 10 years ago. Seo Ji-yeong and Kim Jae-wook (Bae Soo-bin) were happy with their child. However, Seo Ji-yeong's friend, dirt poor lawyer, who wanted to be the eldest daughter-in-law of the Chunji Constructions company, seduced Kim Jae-wook, got him divorced and married him instead.

When this happened, Seo Ji-yeong was pregnant. After she found out what happened between them, she warned Kim Jae-wook that he'll never be able to see his child. She divorced him and married Song Min-ho (Lee Chun-hee) and lived happily.

However, Seo Ji-yeong's son, Song Hyeon-woo (Wang Suk-hyun), was diagnosed with leukemia. He needed a bone marrow transplant, but it was hard to find a matching donor. She reached out to her ex-husband Kim Jae-wook and asked him for a bone marrow test. Kim Jae-wook, who had never gotten over Seo Ji-yeong, happily agreed. Woo Na-kyeong found out and asked him if he dreamed of Seo Ji-yeong coming back to him with their child. He replied, "I dream of it every day, but she doesn't want that", which broke Woo Na-kyeong.

Kim Jae-wook's marrow didn't match. The doctor said there's only a 5% chance that a parents' marrow would. A sibling from the same parents would have a 25% chance. Seo Ji-yeong resented Kim Jae-wook for destroying what they had and the chance for them to have had a second child.

Kim Jae-wook's father Kim Sang-cheon (Park Geun-hyung) told Woo Na-kyeong to bring him back his grandson Hyeon-woo and she started plotting. Kim Jae-wook warned her he would divorce her if she ever tried to do something like that. When Hyeon-woo almost died because of a cold, Seo Ji-yeong asked her ex-husband for a second child.