On days when Sunao is sick, or not feeling like going to school, she is called to take her place. She was born to this world when Sunao wished to have a substitute. No one knows that she exists, but she tries to do her best for Sunao whenever she is called. One day she talks with Sanada, one of her classmates. They become friends, but soon he notices that she is different from the original Sunao...he was the first one who did. She tells him to talk with her only when she has her hair half-up. Sanada does like she told him, and they enjoy their time together. As they become closer, she realizes that she has special feelings toward Sanada. But she doesn't know what will happen to her...if she, a replica, falls in love.

Sakuradaimon takes his role on the school's Public Morals Committee very seriously. Every day, he dutifully checks students' appearances at the school gate—most often scolding Kohinata, a rule-breaking girl with bright hair and a short skirt. Though she finds his constant lecturing annoying, everything changes when she discovers that Sakuradaimon is actually a bit of a mess himself. A lighthearted short romantic comedy about a strict committee member, a bold classmate, and the chaotic school life that brings them together.

In 199x, the world was engulfed in the blaze of nuclear war. With the Ocean drying up and Earth torn asunder, all life seems to be lost but humans survived stubbornly. However, what dominated the post-apocalyptic world was sheer violence. The remaining humanity was split into two groups: those who kill and take whatever they can and those who are exploited. When all hope seems lost for the weak, a man in ragged cloth appears. He is Kenshiro, the rightful successor of the Hokuto Shinken martial arts with seven studs-like scars in the shape of the Big Dipper. His journey to becoming a legendary savior begins!

Maria, the daughter of a duke, grew up believing she would one day inherit her father's dukedom. Accordingly, she focused her attentions on honing her martial arts prowess, while thoughts of marriage fell by the wayside. But the arrival of a baby brother in her family means she's losing her role as heir! Now that she's decided it's time to marry after all, she's arrived a little late to the game! Are there even any eligible bachelors left? Upon going to study abroad in a neighboring country where she might still stand a chance at getting hitched, she's bewildered when the crown prince there declares before all that his engagement to her is null and void! Wait... what engagement?! Apparently, he's mistaken her for the wrong girl! But once that's all cleared up and he catches sight of her knocking out a whole pack of bandits, it turns out that this prince may have a thing for ass-kicking young ladies after all.