The First 15 Minutes of Sentimental Graffiti 2 (Dreamcast)

Copied from Visual Novel Database:

The second game takes place in a world in which the first protagonist died in a traffic accident during his journey. The game takes place in a college town in which the original 12 girls have gathered to attend. The protagonist, Shiina Kouhei, is a second-year college student and a member of the Photography Club. He has been tasked with the job of finding his own model for the photo exhibition at the upcoming school festival, and thus turns to one of the now emotionally scarred girls in hopes of convincing them to become his model.

Copied from MobyGames:

The game is played in the 1st-person perspective to in communication with other characters and looking at places up close while an isometric view is used to traverse the city. Both city and locations are affected by the time of day and will feature different graphics during morning, twilight or night, as well as affecting stores and other locations.