Riku is an elementary school boy who loves football. Yori is a high school girl who is the ex-girlfriend of Riku's brother, and she is full of secrets. This is a story of first love that unfolds with the sea breeze, from a pre-adolescent perspective.
Nami no Shijima no Horizont is a completed manga by Ogawa Maiko (小川麻衣子), first published in 2021. It blends romance, drama and slice of life. You can read all 9 available chapters of Nami no Shijima no Horizont online for free on MangaPulse; the newest is Chapter 8, added 2026-10-02. The series is finished, so you can read it from start to end in one go.