In the aftermath of Amagami SS, high school student Junichi Tachibana continues his relationships with the girls at his school. Amagami SS+ Plus offers a glimpse into what happened after the resolution of each girl's individual story. New events begin to take place between each of the girls and Junichi. Tsukasa Ayatsuji, the class representative, runs for student council president; Rihoko Sakurai, who has taken over the Tea Club with Junichi, still wants to confess her feelings to him; Ai Nanasaki questions the future of her relationship with Junichi when he leaves for college; Kaoru Tanamachi wonders if her relationship with Junichi will ever go any further; Sae Nakata and Junichi deal with classmates who still can't believe that someone so cute is his girlfriend; and Haruka Morishima wants to take their relationship to the next level and get married. [Written by MAL Rewrite]

Recap of episodes 14-25.

Every day, a young girl wearing a mask stands by the beach and sings a nostalgic melody. After experiencing two sudden heart-wrenching partings when she was only a child, Nino Arisugawa has been singing her songs to the ocean, bound by a promise made with her two childhood friends—her first love, Momo Sakaki, and a boy who composed music, Kanade "Yuzu" Yuzuriha. Having never met each other, the boys both individually promised that if Nino was ever separated from them, her voice would be the beacon to reunite them once again. After six long years, destiny has finally placed Nino, Momo, and Yuzu in the same high school. However, the passage of time has changed many things in their lives—while Nino relentlessly attempts to fulfill her childhood promise with the boys, Yuzu's feelings for her from the past resurface, and Momo goes to great lengths to prevent a reunion with Nino. Through music, will they be able to mend their friendship and overcome all the feelings involved in this complicated love triangle?

Behind the colorful curtains and extravagant performances, there lies the dark side of a circus life, hidden away from the smiles and praises of the audience. Set in early 20th century Japan, Midori: Shoujo Tsubaki highlights the misdeeds that occur in circus camps. Midori was an innocent young girl who enjoyed her life as an elementary student to the fullest. However, everything changed after her mother fell ill. Eventually, Midori is forced to stop going to school and, instead, sells flowers in the city. When her mother dies tragically, Midori meets a stranger who leads her towards the circus. What awaits her will change her life forever... In a life where nothing seems to go right, will Midori lose faith and give up? Or will she manage to stay strong in hopes of a better future?