Manami no Doko made Iku no?

Manami was just about to begin enjoying her summer vacation, when she received a strange letter. The sender implies that Manami has been chosen as a heroine, and her task is to stop a criminal syndicate in her home town. As the girl begins investigating nearby areas, she meets a mysterious masked person known as Black Pack, and delves deeper into conspiracies and bizarre sexual encounters.

Manami no Doko made Iku no? is a Japanese-style adventure game. Every screen is accompanied by a command menu, which includes verbs such as Examine, Talk, Use, Move, etc. The commands rarely lead to object sub-menus, though sexual scenes contain many such options. The player is typically required to go through several commands and visit different locations to advance the story.