This anime was very beautiful from start to finish. The characters personality felt really alive, plot maybe simple but the giggles that I felt midway was so insane that after watching it 3 times I lost all sanity. How they showed Sei is like a cupid shooting 1 arrow per episode in your heart. It might be a downside for some that it does not have a proper antagonist but it did not felt rush and in turn, felt really good after and satisfied but wanting more ( at least for me) after watching it.
Uhh, sorry! I felt like I did not write a proper review about the anime but just wrote what I felt about Sei in the end. But you know, there are those anime that you really really liked, found really beautiful and cannot compose a decent review.