Shortly after astrology predicts destruction to befall the Tang Dynasty, a coup d'état led by the crown prince Li's very own brother kills him and his wife and sons. Li's daughter, princess Yongning, manages to escape, but is soon declared dead alongside her family. Full of wrath, the princess swears to avenge them as she takes on the identity of a young man, Li Chang Ge, and moves to the Shou province to advance her goals. Li Chang Ge uses her wits to gain the trust of the Shou emperor and swiftly climbs the military ranks as a brilliant strategist. Captivatingly drawn, Song of the Long March portrays the feisty girl's adolescent journey toward countless unknown adventures, faithful comradeship, as well as formidable enmity awaiting her along the way.

Under the tutelage of the great demon warlock Romberg, Ike grew up with knowledge regarding an ancient advanced civilization that once ruled the land. Coupled with his innate talent in magical arts, this upbringing allows Ike to quickly rise in the Demon Lord's army ranks, leading his brigade to consecutive victories against humans. However, Ike has a secret—he is a human himself. Despite knowing all too well the consequences if this information is ever to leak, Ike is willing to face such immense danger to achieve his goal: find a way for humans and demons to coexist and stop the war that has been carried on for far too long.

Hana lives on the small island of Tonakijima, with a population of 600, and loves reading to the island's children. Mizuki, the president of the school's broadcasting club, notices Hana's talent for engaging others through her storytelling and invites her to join the club. As Hana embarks on this new journey, she experiences many "firsts" with the broadcasting club members, deepening her love for reading even more.

Tokimeki Memorial brings together the twelve young girls from Kirameki High School, but revolves around the main girl, Fujisaki Shiori. The story starts at the beginning of the third school year, which is the last year before the main character can choose a girl and date her at the graduation.