IF YOU HAVE NOT READ THE SERIES: I don't recommend watching these two episodes. There's a lot of missing KEY details that these weren't able to cover given that this is merely a "trailer" to promote the manga.
IF YOU HAVE READ THE SERIES: This is great to see both Megumu's and Mitsuru's identities be revealed.
Story: 4/10
The story itself is amazing but these two episodes did not do it justice!
Art: 9/10
Go Ikeyamada has a beautiful style, which I'm happy to see wasn't lost in the anime.
Sound: 3/10
Pretty generic soundtrack, sadly
Characters: 10/10
Like I mentioned earlier in my rating for the art, Go Ikeyamada's characters are always drawn beautifully &have amusing chibi reactions that never seem to grow oid
Enjoyment: 7/10
Overall: 7/10
Given that I've read half the series already, I did thoroughly enjoy the first episode. The second wasn't as great, but it did show the siblings relationship and Mitsuru a little better than the previous.