Ask for all the episodes in which Mao Lilan suspects that Kudo Shinichi is having an affair.

1. Vol.3 File.7 "A Gift from an Unknown Origin" ~ File.10 "A Crucial Chance" (Total File.26~29)

The corresponding animation is TV 7 "The Monthly Gift Threat"

Conan saw a line-like mark on the front of Mr. Ogawa's index finger and concluded that he was a surgeon, which reminded Xiaolan of Shinichi ("Roller Coaster Murder") "The performance in "), then observed Conan closely, and then repeated Conan's words.

Conan asked Dr. Ali to use a voice changer to simulate Shinichi's voice to call Xiaolan. Conan was at Xiaolan's house at the same time, making Xiaolan think that Conan and Shinichi were two people.

2. Vol.4 File.6 "Countdown to Ten Seconds" ~ File.7 "Unexpected Treasure Map" (Total File.36 and 37)

That is TV 5 "Shinkansen Train Explosion Incident"

In order to prevent the train explosion, Conan wanted to tell Xiaolan the truth. After being questioned by Xiaolan, Conan argued that he was the Masked Superman. (The TV version was changed, and finally a few members of the detective team used jokes to save the siege)

3. Vol.14 File.1 "Photos as Evidence" ~ File.4 "Questioning in the Colorful Falling Leaves" ( Total File.131～134)

That is, TV 96 "The Desperate Detective!" "Two consecutive murders"

Conan's eyes were taken off by Xiaolan while he was sleeping, which made Xiaolan feel familiar. At the same time, Xiaolan found a photo with Shinichi and the magician Kujiyuan Yasu 10 years ago. , Xiaolan firmly believes that Conan is Shinichi, and the reason why he became smaller is because he took the strange medicine invented by the doctor.

When Xiaolan took Conan to the door of Shinichi's family and forced him to confess, Shinichi's mother (Yukiko) appeared. Yukiko helped Conan lie, saying that Conan was her relative, so that Xiaolan believed it was true. . At the end, Yukiko's words: "The girl's smile was a little weird at that time." and Yusaku's words, "Those who underestimate women will suffer!" imply that Xiaolan does not really believe that Conan ≠ Shinichi.

4. Vol.21 File.4 "The First Greeting" (Total File.204)

That is, TV 162 "The First Incident of Kudo Shinichi in the Flying Secret Room"

Conan fell asleep as soon as he got on the plane. Xiaolan took off his glasses for him and smiled when he looked at Conan's face. He recalled the case that happened when he and Shinichi were on the plane a year ago. This was also the case for Shinichi. The first case to be solved independently.

This detail is quite hidden. If you look carefully, Xiaolan has already suspected (or confirmed) Conan's identity. It is natural to recall Shinichi's story when she sees Conan's face. . (This scene did not appear in the animated version)

Vol.23 File.8 "This is the Truth" (Total File.229)

That is, TV 174 "Twenty Years of Murderous Intent" "Serial Murder Case on the New Forni"

Xiaolan gradually discovered that Conan was Shinichi through getting along with him. This can be reflected in what he said on the deck at that time: "Don't leave me alone...". (This scene was downplayed in the animation, but I often recalled it later)

Vol.25 File.1 "Unsociable?" 》(Total File.243)

That is, TV 172 "Resurrection of the Death Message (Part 1)"

When Xiaolan and Yuanzi asked Conan if he could skate, Conan pretended to fall. On the contrary, Xiaolan thought it was fake; when the crime occurred, Conan heard Yuanzi's scream and quickly slipped to the scene of the crime. Seeing Conan skating, Lan had doubts again.

Vol.25 File.9 "The Wounded Detective Team" and File.11 "Conviction"

Vol.26 File.1 "Confused Heart" ~ File.5 "Rest" Moment" (Total File.251~260)

That is, TV 188~193 "Resurrection of Dangerous Reputation" series★

Xiaolan basically discovered that Conan is Shinichi. Therefore, he is unwilling to take a bath with Conan and knows that Conan's blood type is the same as his own. Haiyuan created the antidote, and pretended to be Conan, allowing "Conan" and Shinichi to appear at the same time, dispelling Xiaolan's concerns.

(This time the span is longer, including the entire process of arousing doubts, deepening doubts, basically confirming, and resolving doubts)

5. Vol.46 File.11 "Doubtful Email"

Vol.47 File.1 "Doubtful Reasoning" ~ File.4 "Unlocking" (Total File.479 ~ 483)

That is TV 398 ~ 399 "The Wonderful Family" Commission"

TV 400 "Doubtful Xiaolan"

Lan sent a text message to Shinichi, but Conan's cell phone rang at this moment, looking at Conan With a series of panicked expressions, Ran once again suspected that Conan was Shinichi.

Previously, Conan had borrowed the doctor's mobile phone that was the same as his own and changed the mobile phone link. He asked Lan to study the doctor's mobile phone, and then used Shinichi's mobile phone to call Lan (play the recording). Let Conan appear in front of Xiaolan and solve Lan's doubts.

6. M 3 "The Magician of the End of the Century"

Because Conan said his birthday was on May 4th, Lan thought that Shinichi's birthday was also May 4th. , when Conan rescued Lan in the cave, Lan felt Shinichi again, so she suspected that he was Shinichi.

When Xiaolan cried and said to Conan, "You must be Shinichi," and Conan was about to tell her the truth, Kidd appeared as Shinichi and came to Conan's rescue.

7. Other unconfirmed suspicions:

Vol.66 File.8 "The Battle to Recapture the Possessed Talisman" (Total File.693)

That is TV 573 "The Whereabouts of the Embarrassing Amulet (Part 1)"

Xiaolan doubted whether Shinichi had touched Heiji's amulet, and it was Conan who had touched it, although Kazuha told him where Heiji borrowed it. After passing Shinichi, Xiaolan smiled in surprise, feeling like she didn't believe Kazuya's explanation.

Xiaolan has subconsciously formed the impression that Conan will be able to find clues and the prisoner. It feels like Xiaolan has begun to doubt Conan's true identity. (Maybe it is paving the way for the future plot)

M 15 I don’t need to say more about the plot of "15 Minutes of Silence". Maybe it is also foreshadowing, but because there is no difference between the theatrical version and the original work, The rooms are basically independent, so it is unlikely that Xiaolan will discover them.

In addition, in the latest comic File.794 "Genetic Information", Xiaolan said: "DNA testing is very powerful! In the past, you could only test the blood type through saliva, but now you can know at once whether it is... Even if you disguise yourself and deceive everyone, you will be exposed immediately!" Xiaolan said the last sentence while looking at Conan, and Conan turned into a pea-eyed person, so many people thought this sentence was true. These words may be a hint that Xiaolan begins to doubt Conan's identity.

As for why Xiaolan doubted Conan's identity in the "Dangerous Resurrection" series, it should be connected with the previous episodes. It was discovered that Xiaolan actually had signs of doubt before.

P.S.: In episode 345, Xiaolan was suspicious of Teacher Judy’s identity, so she hid in the trunk of her car. There is no plot in this episode where she suspects Conan.