For the guy that remarked on Rika's home-life - Notice also how serious Rika was at the Gravestone. So either she's missing a biological parent or whichever older relative kicked the the bucket could have been spending the most time with Rika.
I like the small attention to detail on pg 5. The night sky is filled with stars where Sakura is at suggesting he's in a more rural area while there's hardly any stars where Rika is at because she's closer to the city and it's lights.