Oh

Chi, your way home is this way too?

We're neighbours so it should be obvious

Flirting on the street, huh? I see, you're showing off your "childhood friends" power

Please call me Yuugure no Toko-chan

I've heard you were also called by a nickname, Chii.

In other words, since we're both called by nicknames, we can say I'm senpai's childhood friend too

I've always wanted a childhood friend and I'm so excited I could start singing

La-la-lan