Content with these tags is intended for adults only and often contains explicit themes. If you are looking for a legal copy, you can search for the "RJ" code directly on the DLsite website . NTR Explained
The text you are referring to, " NTR Bitch in Umi no Ie" (RJ01262007), is an adult-oriented game developed by Summary & Concept ntr bitch in umi no ie rj01262007 repack
If you have downloaded a version and are having trouble running it: Most Japanese titles require your system to be set to Japanese (Japan) or for you to use a tool like Locale Emulator to launch the Antivirus: Content with these tags is intended for adults