Series by 八寿子

Kayo Hanazono, a high school girl, is shocked when her 30-year-old future self suddenly appears, warning her that she remains single and her childhood friend Shinnosuke Aikawa marries someone else. Determined to change this future, Kayo tries to get closer to Shinnosuke, but struggles with her own stubborn feelings. Meanwhile, an attractive classmate named Taki aggressively pursues her, complicating her emotions. A rival, Kushida, who is connected to Shinnosuke’s future, also emerges, intensifying the romantic tension. Kayo navigates these challenges while grappling with her insecurities and the pressure to alter her destiny.

Shizuka, a high school girl haunted by the pressures of her strict father, finds solace in her carefree classmate Tarou, whose easygoing nature brings light to her stressful days. As their bond deepens and feelings grow, their lives are upended when Shizuka's mother and Tarou's father unexpectedly remarry, making them step-siblings overnight. Now living under the same roof with new parents and siblings, Shizuka and Tarou must navigate the complexities of their evolving relationship, balancing love, family, and the challenges of adolescence.