It's been a long time since I last watched an anime, but after reading the catch word of "sugary-sweet romance" I had to look at it
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Anyway: The first impression + episode was quite lovely. Sakuna was simply cute and may have the potential to rival Sana (Ranma Tensei) with it
. Airi seems okay, I assume her personality will change depending on wether the characters are in the school or not (as in normal/nice when in town and harsh when in school); at least it would be for me acceptable. The maid was fun with her surprise of Shingo's "tadaima". Poor teacher though, being rushed with a sudden school merger
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Then opening is quite catchy and sounds well.