The Girl Next Door: The Wet Bride's Temptation

Original title: 隣のお姉さん 濡れた花嫁の誘惑

Shu, a college student, secretly has a crush on Kei, who lives next door. One day, Kei's friend Maki suddenly shows up in front of him dressed as a bride. On their wedding day, she finds out that the groom has been cheating on her, and so she storms out of the ceremony...