Pseudo-Incest - (movies & dramas)

Movies, dramas, and drama specials with pseudo-incest: 

• Relationships between characters who think they are blood-related, but aren't. 
• Relationships between characters who pretend to be blood-related. 
• Relationships between step-siblings/relatives (via marriage) 
• Relationships between adopted siblings/relatives. 
• Titles with one-sided love/lust will also be included. 

If you know of a title that's missing from this list (even if it's not found on MyDramaList) please let me know, and I'll add it! 

Also, if any of these are listed incorrectly (ie., they are REAL incest rather than pseudo), please let me know. 

Note: Secret (1999 Japanese movie) and Himitsu (2010 Japanese drama) are on both incest lists, since they can be considered both real AND pseudo-incest. And The Rose (2003 Taiwanese drama) is also on both, because it contains both real and pseudo-incest.