30 Kin Sore wa 30-sai Miman Okotowari no Koi EP4 "I'll Cast it Away" (Patreon)

Shino's company, Yotsuba Homes, celebrates its 40th anniversary and decides to shoot a commercial. On the day of the shooting, Shino hears from Osaka Mitsuru, who serves as the company's brand ambassador, that she was a classmate of Kawai's. She realizes that Kawai's girlfriend is Mitsuru, which makes her distrust Kawai and at the same time worries that she has no right to judge him. Shino expresses her feelings to Kawai but is further shaken when Kawai declares that he will cast away Mitsuru. Meanwhile, she is struggling with her relationship with Mayuki, but because Mayuki is serious about her, she decides to put an end to her feelings of being torn between the two and cast away Mayuki.