Thank you for the chapter! Yeah, they've got Kozue all figured out.
Is this foreshadowing to his decision in the end? All of them?
I hope it is. Harem ending is the way to go.
(pushes up glasses, nerd voice) Um, ACKTSHCHUALLY, it's foreshadowing how he will refuse to choose anyone in particular, much like how he refuses to pick one umbrella, and then regret the decision later by getting happiness from none of them, represented here as being drenched by the rain. This is foreshadowing that his indecisiveness will only bring dissatisfaction to his life and- wait no what are you doing NO MORE WEDGIES, PLEASE DON'T SHOVE ME IN THE LOCKER AGAIN. The English teacher said the curtains were BLUE which means- no, I'm NOT overthinking it!