The Class trip takes you to Tatsumi Port Island, the main location in Persona 3. During the First Day, you go to Gekkoukan High School where you meet both Mr. Edogawa and Chihiro Fushimi.

Chihiro says she received help from last year's Class President to write her speech, implying Mitsuru Kirijo helped out.

Mr. Edogawa's lecture is important. Spoiler:It tells of the mythology behind Persona 4's last boss, Izanami-no-Okami, and the protagonist's final persona, Izanagi-no-Okami.

When you finally get to your hotel at the end of the day, you end up on Shirukawa Boulevard. The Seaside Clam-Shell Hotel is the location of Persona 3's fourth full moon shadow battle with Arcana Hierophant and Arcana Lovers.