: This likely refers to a Japanese media title. While "Shinseki no Ko" translates to "Child of a Relative" or "Relative's Child," it is frequently associated with specific manga or anime storylines involving living with a relative.
The phrase you provided, is the Japanese title for a popular adult-oriented (H-manga/anime) series often localized or discussed as "Staying with my Relative's Child" or "Stay Over with a Relative's Kid" . : This likely refers to a Japanese media title
Character sprites and backgrounds are often redrawn or upscaled to look sharp on modern 4K displays. : This likely refers to a Japanese media title