For as long as Akari can remember, she and Hiroyuki have always been friends. But with time, everything changes, and her feelings have turned into something more. As a new semester of high school begins, will the two childhood friends come closer together or drift further apart? Join Hiroyuki, Akari and all their friends—the bubbly Shiho, the quiet Serika, the lovely Kotone, and more—in this heartwarming tale of love, relationships and friendship!

When humanity is driven to the brink of despair by an alien threat called Pillars, a self-proclaimed god named Odin appears and bestows upon the people the power of "Valkyries"—battle maidens who pilot vintage aircraft called Hero Wings. Claudia "Schwertleite" Bruford is the ace of the European Valkyrie Wing. When Japan's S-class Valkyrie passes away in battle, Claudia is relocated to Japan as a replacement. However, with a dark record of being the sole survivor in every mission that results in being nicknamed "Grim Reaper," she suspects she already knows why she was chosen. Prepared to be shunned yet again, she arrives at the Tateyama Valkyrie Wing. Little does she know, her new comrades are a bunch of oddballs who have zero intention of accepting her dreadful nickname! [Written by MAL Rewrite]

Yoshino Hide is an average girl who always seems to find trouble wherever she goes. One day Yoshino visits a local shrine to pray in order to pass her upcoming test. However, Yoshino sees a blue light coming from inside the Shrine and looks inside to find a mysterious person performing a magic spell. In a stroke of bad luck, Yoshino trips on a small bell and crashes into the shrine, prompting the stranger to catch her. Upon Yoshino's capture, the magic spell spirals out of control and sends Yoshino back in time to the Sengoku Era. Yoshino then encounters Akechi Mitsuhide and Oda Nobunaga. But unlike what really happened during the era, Hideyoshino realizes that everyone in the world is female. She then decides to help Oda Nobunaga find the Crimson Armor which is said to allow the person wearing the armor to conquer all of Japan.

Natsuza Yuzuki has been playing rugby as a left-winger ever since he was a child. After enrolling in Doushisha University, he quickly becomes a rising star in the Kansai University League. His dreams are shattered, however, when a nasty motorbike accident leaves him with a spinal hernia—making him unable to be able to play rugby ever again. With no role available other than the position of manager, he accepts his new post and hopes his squad can obtain a league title. Yuzuki's team is an unlikely group, including his stoic best friend and full-back Seiichirou Jingyouji; hot-headed first-year Yasunari Tsuru, who harbors a strong dislike for Natsuza, filling his senior's old position as left wing; and Yuu Mashiro, who is struggling to hold his ground as a scrum half. Despite Natsuza putting his all into training his team for a league title, their squad still feels incomplete. A year ago, Ibuki Ueka, the genius fly-half that was once Doushisha's ace, suddenly quit rugby—and now Natsuza is determined to get him back. [Written by MAL Rewrite]