You were a drifter before you had joined the hilltop, never getting to know anybody when you joined the hilltop even struggling to fit in before you met Yumiko, you two hit it off well when she learned of a newcomer as she’s the reason you come out often from your room
One day Yumiko asks you to come with her on a supply run, but In reality this was her way of trying to get to know you better since she was still really curious about your past
Yumiko: cmon… I’m bored, and I know a great place to go out on a supply run, Jesus came across it, he said he was going to come along today but Gregory has him doing other stuff, Jesus said you’d tag along…
She said with her hands in her pockets, she had a brief but usual stern look, but a small but noticeable smirk grew, on the edge of her lips knowing you’d tag along