Kouichi asks many questions and Mei implies that she hates being questioned. Tomohiko accuses Naoya of killing Yuuya, which causes him to panic and flee out a window, only to become entangled in a loose wire and electrocuted. She grows to trust Kouichi to greater extent and confides in him about her family, acknowledging her disdain for her mother and admitting Misaki was her twin sister, as well as her devastation at Misaki's death. It is only Mei and Kouichi who find Matsunaga's tape, and later the two go speak to him directly to learn about the curse.
In the live action film, Takako was originally selected to be the extra, but immediately broke down as she couldn't handle it. She slashes at Mei but Kouichi pulls her out of the way; Yumi slips and falls off of the window sill and falls to her death. Mei watched in shock as Takako gasped out her last breaths. She also points out that their class was the only one to have an Assistant Homeroom teacher and that they actually had the correct amount of seats this year and the missing seat actually being in the faculty room. The person struggles under the fallen pile of lumber and it is revealed to be , Kouichi's aunt.
While she forgot this due to the curse, it still probably severely impacted her own mental well being. Mei realized she was the dead person at the inn, but unlike in the anime hadn't seen her death. Kouichi and Mei walk together, Kouichi asking why she doesn't answer her phone when he calls. When Misaki was alive, Mei was much happier, even wearing brighter clothes, though she was still notably shy compared to her sister. Izumi arrives, witnessing the scene and assumes that Misaki had killed her, since she was holding her knife in her hand. The grave lists both Ritsuko, Kouichi's mother, and Reiko as deceased.
When suggests that is the reason, Mei claims that that's impossible. Later in the series, Mei is also shown to smile the most often when Kouichi is around, adding that she sees him as a close individual to her. In contrast to her typically taciturn behavior, Mei also has a surprisingly childish side; when the class are on their school trip, she spends time building a sandcastle and gets scared when an octopus sticks to her hand, leading her to think that it was going to eat her. Mei assures him she is alive and is positive she has not died. Mei encountered her again when she and Naoya were trying to escape the inn, but was unable to help her as Izumi attacked her first. However, once the girls learned how to break the curse, Takako was against killing anyone, including the people she held responsible.
Devastated, Kouichi did so, allowing his aunt to die and breaking the curse for 1998. Because of this, along with the fact that Yukiyo was still trying to cope with the loss of her unborn child, Mitsuyo gave Mei to her sister to raise her as her own daughter. However, Mei dislikes the dual shade and hides it behind her eye patch. He finds her with a pickaxe next to a fallen tree and hears sounds coming from underneath. Mei shows Kouichi what is behind her eyepatch.
Eventually, however, Mei realized Reiko was the extra and needed to be killed. They ride the Ferris wheel and talk. Takako was gone and later appears with a knife, trying to kill Mei. Mei is also very insecure about her prosthetic eye, which is why she hides using her eyepatch.
When she shows it to Kouichi for the second time, however, he says that it's beautiful and she doesn't need to hide it. However throughout the series, whenever Misaki is around Kouichi, Izumi glares at her in a spiteful manner, especially after many of the death scenes. Their relationship evolved when Kouichi became a non-existent student like her. Due to Reiko being the class's assistant homeroom teacher, she ignored Mei alongside the rest of the class, though because she kept her work and personal lives separate, she could acknowledge Mei outside of school, though the two only appeared together in this context in episode 8. A bird suddenly crashes into the glass killing itself and shocking Misaki who stumbles towards the door which suddenly breaks open.
Kouichi is shocked, he runs and removes her from the wall. Mei saw Death leap from Reiko to Chibiki, causing him to fall off a ledge into the burning inn. At the climax of the film, Mei saw Death leaching out of Reiko and onto Kouichi. She asked Kouichi if he suspected her of being a ghost. In the film, their relationship is considerably worse, as Kirika constantly discouraged Mei from socializing with her classmates, telling her she didn't need friends, and she shouldn't explain about her eye as people would judge her for it.