Extra Patreon Request! Hoshino Ruby x Arima Kana (Patreon)

It's not very easy to become and idol, so Ruby asked her more experienced friend if there's anything Kana could help with. The red haired lady thought for a second and then came up with a great plan on how to improve Ruby's stamina and work on her voice at the same time~( •̀ ω •́ )✧Hello again!~ This is an addition to the request I did a few weeks ago!That's all for today, tomorrow I'll release the same amount of requests, hope you'll look forward to it! (❁´◡`❁)