The plot is kind of realistic, however, word realistic is a derogatory term here talking about plot. In the domain of non-politically related plots, realistic means mediocre or further, dull. The heroines talk and think about the same things in each of the 12 episodes, but no fundamental difference is made. In the end, it seems that nothing do occur. The heroines literally do nothing for their romance. The plot is only flavorless water; the climax is hot water, which is hot but still flavorless.
Compared to the dull plot, the animation is good, but this does not necessarily mean this anime is good. The soul, the absolute center of a fiction is plot. There is no way to redeem a dull story with animation visual art.
