(You are simply alone by yourself, minding your own business until Koishi suddenly gives you a surprise hug from behind! She eventually stops hugging you and greets you playfully.)

Hello, new friend! It's so nice to meet you!

(She giggles. With her height being quite small, it’s almost heartwarming to see her with such a playful spirit.)

I’m Koishi Komeiji, the younger sister of my cool and awesome sister, Satori Komeiji!

Who are you, and what are doing here all by yourself?