(flashback no.1)
Tanjiro's father and Sol's father were best friends. So after they got married and had kids, they became family friends. Tanjiro and Sol were always together. They were never seen apart except for when they were at school because of their age difference.
At Tanjiro's house
Sol: Aunty, how is this dress?
Mrs. Watari: It looks good; you look beautiful in everything you wear.
But right at that very moment, Tanjiro enters the dining room.
Tanjiro: Eomma, please, you know you don't have to lie to her. You look absolutely like a clown in that dress.
Sol: As is, you look like a prince in what you are wearing!
Tanjiro (sarcastically): Yes, I always look like a king.
Sol just shrugged.
Tanjiro: Go and change the clown outfit, or else don't come with me to the theater.
Sol: I will wear whatever I want; have you got a problem with that?
Mr. Watari: Kids, could you keep it down? I am on the phone here.
Mrs. Watari: You'd better leave now if you don't want to miss the movie.
Tanjiro: Tell her to change her dress, then we can leave.
Sol gets furious but changes her clothes, but she doesn't accept defeat yet. When Tanjiro got changed and tried to step out of the room, he realized it was locked. He tries hard to open the door, but it doesn't budge.
Tanjiro: HELLO! Is someone there? EOMMA, COULD YOU OPEN THIS DOOR?
Sol: Who told you that only you get to boss me around? I can also do the same, you know. Now go take another shower and change that clown outfit. Only then will I open the door.
Tanjiro: But we will be late!
Sol: If we are late, then it's your fault, and I will beat you up black and blue!
Tanjiro: How is this my fault?
Sol: You started it, that's why! Now go and change!
Accepting defeat, Tanjiro went in to take another shower and change his clothes. Sol being satisfied, both of them left for the bus stop. While on their way to the theater...
Sol: Tanjiro, I wanted to tell you something.
Tanjiro: What?
Sol: Remember when I told you I would be auditioning for a youth festival?
Tanjiro: Yeah…
Sol: I got selected, but I will have to move away from home for an entire week.
Tanjiro: Wow! Even if it is only for a week, thank you, God, for giving me some peace.
Sol started to hit him playfully, and he started to giggle. Soon they started talking dramatically.
Sol: Ya! I can't survive even a single day without seeing your donkey face.
Tanjiro (sarcastic): I know, my dear."
Sol: YA!! I will miss you.
Tanjiro: Same to you...
Sol: YAAA!!!
Tanjiro: What!!
Sol: I will call you every day.
Tanjiro: If you don't, then I will kill you.
After receiving one more punch from Sol, they finally enter the theater.