Ep 6. Episode 6

Ji-soo's birthday party is the main focus of My First First Love season 1 episode 6, aptly titled "Episode 6." The episode begins with Yun Tae-o, Song-i, Do-Hyeon, and Ga-Rin frantically trying to organize Ji-soo's surprise party in Tae-o's house while keeping it a secret from her. Tae-o is in charge of getting Ji-soo out of the house and keeping her busy, while the others decorate and prepare for the party. However, things don't go exactly as planned, and they have to re-think their strategy to keep Ji-soo in the dark.

Meanwhile, Song-i is struggling to come to terms with her feelings for Tae-o. She has been trying to push him away and move on with her life after their kiss, but she can't seem to shake him off. Her dilemma is further complicated when Tae-o tells her that he confided in Do-Hyeon about their kiss, and Do-Hyeon wants to talk to her about it. Song-i is torn between wanting to confront her feelings and not wanting to hurt Do-Hyeon, who has been such a great friend to her.

As the day progresses, the tension builds up as Tae-o struggles to keep Ji-soo away from the house and the others try to keep everything under control. Ji-soo notices that something is up and starts to suspect that her friends are planning something, which only adds to the chaos. When Tae-o finally convinces Ji-soo to go to the beach, things seem to be going well until they come across her ex-boyfriend, who is with a new girl. Ji-soo is heartbroken, and Tae-o is left feeling helpless as he tries to comfort her.

Back at the house, Song-i and Do-Hyeon have a heart-to-heart conversation about their feelings for each other. Do-Hyeon reveals that he's been in love with Song-i for a long time, but he didn't want to jeopardize their friendship. He tells her that he wants to pursue a relationship with her, but he respects her decision if she doesn't feel the same way. Song-i is conflicted and unsure of what to do next, as she realizes that Do-Hyeon is a great guy who truly cares for her.

Ultimately, the episode ends on a high note as Ji-soo is surprised with her party, and the group comes together to celebrate her special day. They all dance and have fun, forgetting their problems for the moment. However, the episode leaves a lingering feeling of uncertainty as Song-i and Do-Hyeon's relationship remains unresolved, and Tae-o's feeling for Song-i continue to grow stronger.