RHE-564 - Will the amateur guest break under the pressure of live broadcast and booze?

The short-haired girl, Sora-chan, in the second sample image was so cute. She alone is worth 5 stars. If anyone knows her name or other works she's in, please let me know. Also, I'm pretty sure Yuuka is 'Shuri Yamamoto', Miki is 'Hana Mikura', and Kotomi is 'Shiori Mochida'. Some girls do the real thing and some don't, but Sora-chan definitely does.