The 13th episode of Phantom Lawyer starts with Na-hyun crying over I-rang’s body, which is still unconscious. At the same time, Si-ho’s ghost floats nearby, confused and unable to remember who he is or how he got there. Si-ho stops him as he starts to move toward the light and tells him to keep his word and help find his mother.
His family gets to the hospital just in time for the doctors to say he’s dead, but then his vital signs stabilize and he wakes up. Later, during a media interview about Ye-jun’s rescue, Si-ho briefly takes over I-rang’s body, which makes for an awkward but surprising moment in public. I-rang is embarrassed, but Da-bong is impressed by what is going on.
Afterward, Si-ho learns from Si-ho that Na-hyun had a breakdown while he was unconscious, which has a big effect on him. Later, Na-hyun comes with news about Chi-yeong’s case. He is being tried for Si-ho’s disappearance, but he may only be charged with kidnapping.
I-rang is upset that Si-ho might get a relatively light sentence because he thinks it doesn’t show how serious Si-ho’s suffering was. At home, he thinks about Chi-yeong’s past and how it might be related to Si-ho’s disappearance. Si-ho finally remembers the day he went missing and says that he trusted Chi-yeong because he had given a school talk on safety before.
At first, Chi-yeong seemed nice, but when Si-ho wanted to go home, he got angry. Si-ho took medicine for a headache that was getting worse, fell asleep, and woke up in I-rang’s office, where he knew something was wrong.
I-rang hesitates when Si-ho says he wants to see his parents because he knows how much his disappearance hurt his family, even causing them to split up. He still promises to help them heal and bring some closure.
The next day, I-rang, Na-hyun, and Bong-soo start looking into Chi-yeong’s past. They learn about his troubled family history, which includes a tragedy that happened in the past when his son Gyeong-seo fell through a broken window and died. The court ruled in Chi-yeong’s favor, even though he was being looked into.
But this case alone doesn’t fully explain why Si-ho went missing. The team finds strange things about Chi-yeong, like how he buys pizza and fake coupons. Bong-soo links this to a memory of Da-bong from when they were kids, which helps them understand that the coupons were made to fit a child’s wants, especially a camping prize.
They think that Chi-yeong may have taken kids, including Si-ho, in order to have the “perfect father” experience. There is proof that Si-ho may have gone camping, where he could have been buried.
I-rang chooses to face Chi-yeong head-on, while Bong-soo, Na-hyun, and the others look for Si-ho’s body at the campsite. When questioned, Chi-yeong says he doesn’t remember Si-ho, but Si-ho briefly takes over I-rang and confronts him emotionally, reminding him of a child’s love that has no conditions.
This fight breaks Chi-yeong, and he admits that Si-ho died of illness while they were together. He tells them where the body is buried, which lets Si-ho’s parents finally get it back.
Si-ho moves on peacefully after helping bring his family back together and bringing closure. Later, the family has a quiet time together at Kyung-hwa’s restaurant.
At the same time, things get tense at Taebak offices as Chairman Yang goes over I-rang’s case files for a civil lawsuit that Si-ho’s father filed. At the same time, Do-gyeong finds troubling information in his father’s letters from abroad that suggest secret choices about medical care.
Na-hyun then suggests that they all get together for a meal to talk about how they really feel. But I-rang gets nervous because he thinks he might have done something wrong.
The next day, I-rang tries to meet with Si-ho’s father about the case, but he is met with anger and rejection because of their family’s history. It comes out that I-rang’s father was involved in a scandal decades ago that ruined Mr. Yoon’s family, causing them to commit suicide and hold a grudge for a long time.
Do-gyeong is still secretly looking into his father in other places, even hacking into his office communications. He finds out that his father is looking for a shaman because he is afraid that if ghosts show up, a secret about “him” might come to light.