"Kings" are individuals who have been bestowed with incredible supernatural powers and granted the ability to recruit others into their clans. Protecting the lives and honor of their clansmen is an integral part of the Kings' duties. After a video depicting the heinous murder of a Red Clansman spreads virally, the unassuming student Yashiro Isana is accused of homicide. Now, a manhunt is underway for his head, bringing him into contact with the infamous "Black Dog" Kurou Yatogami—a skilled swordsman and martial artist determined to follow the wishes of his late master, the Seventh King. Meanwhile, the current Red King, Mikoto Suou, faces his own imminent demise as the search for Yashiro narrows. But during Yashiro's struggle to prove his innocence, a greater conspiracy is unraveling behind the scenes; clouds begin to appear in his memory, and close friends start to question his very existence. What began as a simple murder is now leading towards a full blown war between Kings with the very fate of the world at stake. [Written by MAL Rewrite]

Feelings may come and go, but true love always remains in the heart. Tsumiki Miniwa is in love with her best friend, Io Otonashi. For her, confessing is nearly impossible; but to her friends, they seem to be the perfect match. Cute and petite, Tsumiki comes off more as a friend, and Io's attitude toward her is friendlier than toward others. Despite the constant teasing and obvious hints that his friends have been dropping, Io always seems to miss the signs. Throughout her everyday school life, Tsumiki spends time with her friends and Io. Will she finally muster enough courage to confess her true feelings? [Written by MAL Rewrite]

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]

Two years ago, Junichi Tachibana had a date on Christmas Eve but was stood up instead. Since then, he has had a hard time showing others his true feelings in fear of being rejected again. However, as luck would have it, Junichi may have a second chance at love when he meets several girls whom he becomes romantically interested in: Haruka Morishima, the energetic and popular upperclassman with a love for cute things; Kaoru Tanamachi, his childhood friend who harbors secret feelings for him; Sae Nakata, the timid transfer student who is shy around men; Ai Nanasaki, a girl on the swim team who has a bad first impression of Junichi; Rihoko Sakurai, a childhood friend with a love for sweets; and Tsukasa Ayatsuji, a seemingly perfect class representative who has a hidden dark side. As Christmas Eve approaches, Junichi can only hope that this will be the year he will finally spend the holidays with the one he truly loves. [Written by MAL Rewrite]