Buying the volumes/DVD/Blu-ray s from amazon.co.jp is easy, around a month ago when I got mine they were all in stock both the regular and limited editions as well as the Blu-rays.
You don't have to be crazy and buy everything like me but even 1 thing helps, I recommend to everyone to at least get volume 10 limited edition for the invitation bonus, it's great:
Its roughly around 12 USD according to Google, it's just like buying it from regular Amazon they even have a shop in English option (link is already in English).
Vol. 9 is available for pre-order on Amazon
>!TILL DEATH DO US PART?!<
>!Mei and Yuzu are two stepsisters who have fallen in love and must keep their relationship secret from their friends and family. But Mei has a secret of her own: her grandfather has arranged a marriage for her and the wedding is fast approaching. Will Mei follow her family’s plan, or will she stay by Yuzu’s side?!<
I just checked it, it worked fine heres link again just in case if not google real life citrus anime locations. https://www.crunchyroll.com/anime-feature/2018/04/01/fall-in-love-with-these-citrus-real-life-locations
Real life is good. May and June are hard months for teachers and students everywhere... and I'm both XD
2D life. I picked up a little side project. I'm translating a yuri 4-koma. It's ironic that two of my public projects are yuri-related, while in fact I don't read much yuri... XD
In the anime, yes. Scroll down to the Aqua City section of this link:
I hope to do the same thing after the 2020 Olympics.
If it helps, I found this article: https://www.crunchyroll.com/anime-feature/2018/04/01/fall-in-love-with-these-citrus-real-life-locations
Kyoto is at the very bottom.
If it's the german Version then you might find them on other platforms that sell them
I got my Citrus+ 02 Special edition from amazon cause it was sold out on tokyopop
Citrus 02 Amazon (not an affiliate Link)
Im pretty sure that this section is part of the Citrus' Volume 5, but its like the "extra" with miscellaneous stories. To be honest, im not sure where to buy it so have a link from amazon: https://www.amazon.com/Citrus-Vol-5-Saburouta/dp/1626922675
Not knowing your location, I would recommend Amazon. That's for Citrus Volume 1 (English), of course.
Hope that helps.