永遠の7日-終わりなき始まり is a city fantasy idle RPG developed by NetEase Games for Android devices. The game's storyline revolves around the player's fate with the city and the countdown that begins. With the aim of defeating the infinite Linné, the player can use the idle gameplay to their advantage and strategize to conquer the area.

The game features a multi-ending storyline that branches out depending on the player's choices. The scenario is over a million words long and ends with a unique ending for each player after seven days. The game boasts a cast of unique "Artifact Users" with various voice actors giving life to the characters. The players can team up with their allies to fight against the never-ending cycle of reincarnation.

The game's setting is a miniature city on the boundary line, where the player must challenge the seven-day cycle of Linné, and the fate of the world is at stake. The game is free to play and can be downloaded from the Google Play Store.