The story premise would be more interesting without the gross feelings for his sister and vice versa. Its gross blood related or not they still grew up together. This also has harem vibes on top of all that so no thanks.
I don't know if this was the end of this arc or the end of the series. If it was the end of the series then this whole thing was very lackluster, if it was just an arc, then I can't wait for more. But yeah, it stays at 3* until that distinction is made.
The art style is different, but you can overlook it once you pass a chapter or two. He story is interesting, I'm not really sure where it's going, but the MC is fun to watch. The MC's "father" or his "original self" is quite amusing. He gets so frustrated when watching his (younger version) clone and hearing the thoughts his clone has.