Do I have to prepare a hotel reservation, travel agenda or plane ticket when I apply for a Korean tourist visa from Japan?

I am a foreigner who works in Japan, so I have a residence card here (my card will last until 2024)
I am planning to go to Korea next January. From the website I see that I only need to complete the visa application form, prepare my passport, residence card, photo and work certificate.
It is not even written on the website, but should I prepare the hotel reservation, travel agenda, plane ticket or prove my financial capacity when applying for a Korean tourist visa from Japan?