キミトツナガルパズル
[b][i][18]: Kimi to Tsunagaru Puzzle[/i][/b] ([i][18]: A Puzzle That Connects to You[/i]), or simply just [b][i][18][/i][/b], is a mobile phone game by Mobcast. 

h4. External Links
* "Official Site":https://eighteen.jp/
* "Official Wiki":https://eighteen.jp/diver/
* "Twitter Page":https://twitter.com/18_puzzle
* "Anime Twitter":https://twitter.com/18if_anime
18 (game)