The story begins with Takano falling ill and taking a day off. Ritsu tries to handle a project proposal alone but discovers that his rival, Takafumi Yokozawa , has also taken time off.
After a heated argument where an ex-lover of Kisa's also appears, Yukina defends Kisa and clarifies the misunderstanding. The two end up at Yukina's apartment, where they exchange honest confessions, solidifying their relationship. Season 2, Episode 9: "Love Is Lawless" Sekai Ichi Hatsukoi Episode 9
Feeling pressured and flustered, Ritsu shouts that Yokozawa should just date Takano himself because it would be a "relief" for Ritsu . In a classic dramatic moment, he loudly declares that he hates Takano, only for Takano to appear at the door and overhear the entire statement. The story begins with Takano falling ill and
Kisa, who is often insecure about his age and past "easy" lifestyle, finds himself increasingly distracted by his feelings for Yukina. A major misunderstanding occurs when Kisa sees Yukina in a hotel district with a female friend, leading him to believe Yukina is cheating or uninterested in him. The two end up at Yukina's apartment, where
Distraught, Kisa avoids Yukina's calls and eventually snaps at him, even attempting to break up over the phone.
In the anime Sekai Ichi Hatsukoi (World's Greatest First Love), episode 9 is titled differently across its two seasons, focusing on two separate couples in the Emerald editing department. Season 1, Episode 9: "The Case of Shouta Kisa"