Lookism「ルッキズム, Rukkizumu?」 is the one-hundred thirty-ninth chapter of Oshi no Ko manga series. It is written by Aka Akasaka and illustrated by Mengo Yokoyari.
Summary[]
The 15 Year Lie Cut 66: "Invitation to the Workshop". Due to her growing popularity, Ichigo proposes to Ai for her to start taking acting lessons, to which the latter casually agrees.
After the scene, Ruby notices a staff member preparing a stool and questions its purpose. In response, Gotanda explains that the next scene will feature Ai's first interaction with Hikaru and they will thus use the step to make her appear taller, since he was a middle schooler at the time. Hearing the name of her father causes Ruby to remiss how he is the person who orchestrated her mother's murder. Ruby then overhears Frill cuddling on the child actor playing young Taiki, finding him to be cute, and the real Taiki also encourages the boy to do his best. After this, Taiki comes over to Aqua, asking how the latter feels about "facing [his] mother while performing as [his] father". Aqua replies that he cannot really put it into words, to which the former agrees. Taiki then encourages his "little brother" to go all out, only for Aqua to tell him to not call him that.
Cut 70: "Encounter with Boy A". In her mind, Ruby notes that she must remain calm, remarking that the person she is about to meet is not her brother or her enemy but an ordinary middle schooler. However, upon laying eyes on Aqua as the middle schooler Hikaru, Ruby immediately breaks character from excessive blushing, prompting Gotanda to cut the scene. The director tells her to get serious but Ruby claims that having a handsome brother is not easy, much to the former's annoyance. Gotanda then says that Ruby should understand what this meeting represents, allowing her to slip back into character. As filming resumes, Ruby notes that, if not for this encounter and this man, she and Aqua would never have been born but their mother would not have died either. However, she is still unable to stop herself from blushing, forcing the director to once again shout cut.
Cut 74: "After the Workshop". Following her first acting lesson, Ai is asked by Seijuro regarding her thoughts on the workshop and she replies that she did not understand any of it. However, they are interrupted by Airi carrying a young Taiki, who teases her husband about "flirting" with another girl. After formal introductions, Seijuro handpicks Hikaru to coach Ai, since they are both middle schoolers. Hikaru tries to interject but Seijuro claims that teaching others can help your own performance too. He also asks his wife for her opinion and she agrees, though reluctantly. As Ai studies under Hikaru, the former comes to compare the latter to a "jewel that everyone wants to own" due to his looks, wondering if this is how others view her.
Later, Hikaru is confronted by Airi, who claims that a cute girl like Ai must be much more fun than a married woman like herself. Getting nervous, Hikaru tries to assure Airi that she is more beautiful than Ai but is then stunned into silence as the latter reaches into his clothes to touch his bare back.

