Have you read the second volume? Let us know in the comments if you agree that Sajo's character growth makes this book the superior entry in the series.
— The first half of the sequel arc focusing on growth and family struggles. Many fans prefer the later volumes because author Asumiko Nakamura doukyuusei manga volume 2 better
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Doukyuusei Volume 1 is essential because it introduces us to the world. But Volume 2 is essential because it makes us stay. Have you read the second volume
In Volume 1, the side characters (the homeroom teacher, the choir girls) are set dressing. In Doukyuusei Volume 2 , they become the lens through which we see the main couple. the side characters (the homeroom teacher