Gao Gao-senpai, happy birthday

Gao Gao-senpai?

Those girls...!

I see, it comes from "gao" in "Asagao"

No, seems it came from the "oni" horns, I wanted to be strict with them...

Oh... To call a senpai "oni"? it's worth mentoring you, isn't it?

Ah... go easy on me...

*shiver*

*shiver*

Is it a cold...?

I got a call from "Gao Gao-senpai"