hey so I bought DLC but its says that the "no DLC installed". I dunno where I supposed to put the file
Viewing post in 14 Nights With You [DLC] comments
If you've paid for the DLC, please contact Itch Support and ask for a refund, as 14 Days With You and its DLC are meant to be played on PC only (Windows, Mac, Linux).
Cutiesai also does not offer support for third-party software or unofficial downloads for their game, so I cannot help you further, unfortunately.