Former teacher Taguchi resigned from his school for Sonoko (Sho-chan). One day, he receives a sudden phone call from her, forcefully invited to go on a drive to the seaside. Confused yet unable to resist her strong insistence, he gets in the car, and the two head toward the ocean. Along the way, a whirlwind of emotions begins to stir within him. While bewildered by Sonoko's sudden actions, the feelings growing in his heart gradually deepen. Their relationship starts to transform into something new through this drive. Feeling the sea breeze, he tries to decipher Sonoko's true intentions, yet deep down, he can't suppress his growing attraction toward her. Beyond the ocean awaits an unknown future.