Liu decides to place Qi Lu and Xiao in Class C, surprising everyone. As the day unfolds, Xiao watches Qi Lu hand Wei Jiayu a pair of limited-edition sneakers he had promised. Xiao feels a twinge of jealousy, assuming Qi Lu is trying too hard to please Wei Jiayu, but Qi Lu remains indifferent. This only fuels Xiao’s pettiness.
During a lecture, Liu scolds Wei Jiayu for his uninspired artwork. Meanwhile, Qi Lu draws a caricature of an apologetic face and shows it to Xiao, making him laugh. Their laughter catches the attention of the class, including Wei Jiayu, who misinterprets the situation and thinks they’re mocking him.
That night, Wei Jiayu and his friends hatch a plan to get back at them. They vandalize some still-life objects in the art room. By morning, Class C is accused of the damage since it happened in their section. The rest of the school turns cold toward them.
Qi Lu, however, notices Wei Jiayu acting suspiciously and starts to suspect him. A confrontation ensues between Class A’s monitor and Xiao, leading to a challenge: if Xiao scores higher than the monitor on the upcoming test, she must apologize to Class C. She accepts.
Later, Qi Lu and Xiao confront Wei Jiayu, who admits to the vandalism. Embarrassed, he promises to cause no more trouble, and they let it go.
Skipping class, Qi Lu and Xiao head to the zoo. Xiao sketches animals while Qi Lu takes photos—many of them featuring Xiao. They enjoy the day, laughing and playing, savoring a carefree moment away from school.
Back home, Tan, who has been learning to speak, feels ignored by Xiao. Frustrated that Xiao didn’t notice his new hearing aid, Tan storms off to see Liu. He confides in Liu about his insecurities and, in a vulnerable moment, tries to confess his feelings. Liu playfully brushes it off, thinking Tan is just practicing his speech.
Later, as snow begins to fall, Liu walks Tan home. Xiao sees them together and teases Tan, suggesting they’re dating. Tan denies it but admits he likes Liu because of how well he’s treated. Xiao reassures him and reflects on his own feelings, remembering moments with Qi Lu.
Meanwhile, Qi Lu looks through the photos he took of Xiao, smiling to himself.
The next day, Xiao’s artwork outshines the Class A monitor’s, leaving everyone impressed. In a private moment, Qi Lu compliments Xiao on his victory. However, Qi Lu suddenly feels a sharp stomach pain. Xiao, concerned, stays by his side, trying to help. They realize they’re locked in the room.
Wei Jiayu, stops the monitor from apologizing to Xiao, reassuring her that Xiao wouldn’t want it. As she leaves, Wei Jiayu finds himself smitten with her.
Locked in the room, Xiao rubs Qi Lu’s stomach to ease the pain. The close proximity embarrasses Qi Lu, and they share a lingering glance before Wei Jiayu barges in.
Later, Liu announces a holiday and instructs the class to prepare their materials. Wei Jiayu offers to add them to a group chat but subtly suggests they forgive Sun Xiaorui. Qi Lu and Xiao tease him about his crush.
Xiao visits a shop for painting supplies but can’t afford them. Desperate, he accepts a job from a local gang leader, Wu, who asks him to paint a mural in exchange for money. However, the job feels risky, especially since Wu is involved in shady dealings.
That evening, Qi Lu and Xiao enjoy street food before heading to a quiet spot where Xiao teaches Qi Lu to ride a bike. Qi Lu offers to help Xiao get painting supplies, but Xiao insists on handling it himself.
Liu takes Tan to a scenic mountain spot. There, Tan opens up about his painful past, revealing how he ran away from home after being sent to a school that mistreated him for liking boys. Moved, Liu hugs him and promises to support him. Tan shares his dream of taking cooking classes, and Liu encourages him.
Later, Qi Lu asks Xiao to bring him takeout. During their conversation, Qi Lu reveals he’s colorblind and struggles with blending colors. Touched by Qi Lu’s vulnerability, Xiao agrees to help him organize his paints. Qi Lu, in turn, offers to cover Xiao’s expenses for the training camp.
In class, Xiao struggles with his painting, but Qi Lu reminds him not to compare himself to others. Even Wei Jiayu, who isn’t much better, teases Xiao.
That evening, Sun Xiaorui invites Xiao to sketch with her. Wei Jiayu insists on joining, much to her amusement.
Qi Lu grows jealous when he hears about Xiao’s plans with Sun Xiaorui. His online friends point out that he might be in love. The next day, Qi Lu takes out his frustration on Wei Jiayu, who is confused. Xiao, worried about Qi Lu’s sudden mood swings, texts him but gets a teasing response.
Later, Qi Lu works on a large portrait of Xiao, lost in thought.
Xiao plays his guitar on the rooftop, thinking about Qi Lu and the tension between them. He recalls a tender moment when Qi Lu wiped paint off his hands, realizing how much those small gestures mean.