Kayleren
I would prefer harem than 'no harem' as it won't be mindless one as how the story is going. Because you are making a good foundation and emotional bond between MC and harem. So I would like you to make atleast Lara and Aria in harem. If you kill or disown Aria it'll be bland and I would just have to drop it. There may be more as I didn't read the whole story. Good story by the way.