After watching the introduction to the game, & following cutscene where Ine-san gives you 500 yen, head out of your room & walk towards the front door of the Hazuki Residence. Before stepping down to go outside, you'll find a rotary telephone to your left. Dial 110, & Ryo will make a comment. You are now 30G richer.
(You can also find this number in Ryo's notebook, on the first page. Tap X to bring it up.)
Have a good day, Hunters. Enjoy Shenmue in HD!