This drink machine is from Simple DS Series Vol. 8: The Kanshikikan – Kinkyuu Shutsudou!! Jiken Genba wo Touch Seyo, a visual novel for the Nintendo DS. I’ve developed a real knack over the past few years of muddling through dialogue trees in Japanese visual novels in order to screenshot the inevitable Act 2 soda machine, despite my inability to read even a single word of Japanese.