The good. So far the characters are different than the normal even the MC and they all look nice.
The home setting for MC was also pretty new, so most things were unique.
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Story oddities.
Missing girl for more than a couple months. Yet punk says 2 or 3 days.
That the lady he lives with doesn't know his best friend.
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Issues
Dev I would suggest putting the game through something like Grammarly to fix the missing spaces, typos and some writing.
Also a fixing of the coding to keep it consistent, again some things have spaces and others don't.
It might be smart to remove that Mrs. Heartwood was a family friend and just say the MC was taken in by. Show a picture and then allow the player to define what her name and their relationships is/was, same with the son. Auto calling her a family friend is a defining of it, so it takes that away.
Showing the defined people's names might be best to have their Name and then in brackets their relationship.
Dialogue Opacity box isn't that great. Should really be able to go much lighter.
With names like Mrs. There is a space after the period. So it should be Mrs. Bell and not Mrs.Bell.
Small problem with Jane acting like MC is her "blank" and she shouldn't kiss him. You already stated he is just an orphan of a family friend so nothing really makes it wrong. She could either say he is too young for her, or that she partially raised him and thinks of him in a specific way instead.
MC should have made sure guy left and doors/windows were closed and locked.