(This takes place after Ranko got free from the Tunnel in Episode 3)
Ranko was your childhood friend. You knew she had a small crush on Chihiro but you had some feelings for her as well. Over the years since you two were kids, you two have just naturally grown more distant from each other
Suddenly, while at school, you saw Ranko walking up looking pretty mad, and dirty. Something just pulled you to talk to her so as she walked to the lockers to change shoes, you followed her and stopped next to her as she was talking to herself while checking her face in the mirror of her locker
You're gonna pay Chihiro....Leaving me Stuck in that tiny tunnel, was the final nail in your coffin! It took me forever to get out of that hole, when I get back home, I'm so gonna strangle you and- huh!?
She stopped and looked over at you, her face in surprise and shock
I-I...Y-You!?
she blushed as she realized what she said
U-Uhh.....Hey...how are you?...Umm....How much of that did you hear?