7Days: Mystery Visual Novel is a free adventure game developed by Buff Studio Co.Ltd. The game features interactive fiction and a mystery puzzle storyline that allows players to make choices that will determine the outcome of the game. The story revolves around Kirell, who has been assigned a task to complete within seven days. The game progresses as a series of chats, and users read through the story as they make important decisions that determine the route the story takes.

The game boasts of unique features such as graphic novel-style artwork with stunning graphics, various achievements and hidden challenges, multiple endings based on different choices of decision maker, and interactive text story featuring expressions, charts and story options. Players can solve mysteries and discover new endings, making it a mind-based, decision-making game that requires lots of focus.

Overall, 7Days: Mystery Visual Novel is an interesting and engaging adventure game that offers a new experience to players who enjoy choice-based games. Download and play the game today to find out what choices you will make and what outcome you will get.