Episode Summary

Tang Qi's vision can be restored through contact with Su Chengcheng, but she's unwilling. A plan for a garden party event brings Lin Yuan and QianNiao Ji together. Gu Yu advises Lin Yuan on contracts. Room arrangements force Gu Yu and Quan Shengtang to share. Su Chengcheng juggles identities, discovers Tang Qi's color blindness, and stays to monitor him. Gu Yu and Lin Yuan discuss Tang Qi's eyes. Xu Yue uses Tang Qi's condition to join a rival company. Quan Shengtang triggers Tang Qi's memories. Su Chengcheng learns Tang Qi's issue is psychological. At the garden party, Tan Yu challenges Tang Qi.

Filter: Episode 18

Spoiler Alert

In Episode 18 of "Filter," Tang Qireturns to Gu Yu , revealing the secret to restoring his vision: physical contact with Su Chengcheng . Gu Yu, hoping to replicate the method used for Tang Qi, is stymied when Su Chengcheng refuses. Tang Qi, unable to force the issue, feels helpless. Gu Yu then suggests another person, alluding to Quan Shengtang , which makes Tang Qi uncomfortable, knowing that even if he agreed, Quan Shengtang might not.

Meanwhile, Su Chengcheng develops a universally appealing marketing strategy: a traditional Chinese garden party. The plan is well-received, but it requires a renowned comic artist. Lin Yuan , is brought into the spotlight, thanks to Gu Yu's subtle suggestion. Su Chengcheng's plan is a deliberate move to foster collaboration and interaction between Lin Yuan and QianNiao Ji .

Lin Yuan, trusting and somewhat naive, signs a contract with QianNiao Ji without careful scrutiny. Gu Yu, noticing this, advises her to be more cautious in the future, warning that even reviewed contracts can be altered. He offers his assistance with any future contract-related tasks. After signing, Lin Yuan learns that Quan Shengtang's participation is required, with Su Chengcheng as the liaison, leaving her no room to back out. Due to limited room availability at the event location, Quan Shengtang is assigned to share a room with Gu Yu.

Su Chengcheng, forced to juggle her dual identities, finds herself constantly switching roles. Lin Yuan, witnessing Su Chengcheng's sacrifices and hectic schedule, feels guilty for not reading the contract thoroughly. Later, Su Chengcheng, disguised as Quan Shengtang, enters the room. Finding it dark, she assumes it's empty, only to be surprised by Tang Qi, fresh out of the shower. Quan Shengtang, puzzled by Tang Qi's ability to navigate in the dark, turns on the light, which ironically impairs Tang Qi's vision. Suspecting something is wrong with Tang Qi's eyes, Quan Shengtang researches his symptoms online.

Su Chengcheng suspects Tang Qi has developed color blindness and tries to test him with fruit. However, Tang Qi sees the color of the fruit only when Su Chengcheng touches it. This observation confirms her suspicion: Tang Qi can't see the colors in the fruit bowl but can perceive the color of the piece she's eating. To avoid raising suspicion, Su Chengcheng decides to sleep in Tang Qi's room, monitoring his condition.

That night, Gu Yu examines traditional paintings with a flashlight and encounters Lin Yuan. They discover that the workshop misplaced Su Chengcheng's artwork, prompting Gu Yu to alert the staff. Lin Yuan seizes the opportunity to inquire about Tang Qi's eyes.

Xu Yue , overhearing about Tang Qi's vision problem, uses this information as leverage to join Fandai , a rival company of QianNiao Ji. Later, while sharing a beer with Tang Qi, Quan Shengtang's words trigger Tang Qi's memories of meeting Su Chengcheng, even recalling conversations from when she was impersonating others.

The next morning, Su Chengcheng discreetly returns to Lin Yuan's room, learning from her that Tang Qi's eye problem is psychological, not physiological. To prevent Tang Qi from exposing himself, Su Chengcheng labels all his clothes with their respective colors. At the garden party, Tang Qi and Manager Zhou are pleased with the lively atmosphere. Manager Zhou notices Tan Yu , the newly appointed marketing director of Fandai, at the event. Tan Yu immediately challenges Tang Qi to create a brightly colored lipstick, which Tang Qi interprets as a test, responding by offering to create a complete, color-coordinated look for her.