[Crossover] Qian of a Parallel World

. 1.0 Among thousands of parallel worlds, at what point did fate begin to branch off? That's not what we're here to investigate. The real question is... why certain things in fate are so stubbornly unchanging. For instance, Yoshikawa Chika's profession, or the exes/boyfriends/fiancés/husbands who always have something wrong with their personalities. 2.0 I was once struck by these words: "Establish a heart for Heaven and Earth, establish a path for the people, carry on the lost teachings of the sages, and bring peace to all generations." The countless questions I asked myself in response to those words: by the end of my life, will I be able to deliver the answer? [Reader's Guide] 1. This story uses a parallel-world premise and is made up of separate arcs. Yoshikawa Chika, the heroine in each world, is an independent individual. The worlds share the same overall setting, with minor differences between them. 2. Each arc has a new pairing. In chronological order by world, they are: Hozuki → Takasugi → Nurarihyon → Kazama Chikage → Nakahara Chuuya → Kujo Jotaro → Fushimi Saruhiko → Orihara Izaya → Akashi Seijuro → Merlin. (But don't count on it; the order may change, and worlds may be cut at any time.) 3. The tone is slice of life, focusing on work, married life, and everyday romance. Although the heroine's defining trait is that she is always a teacher, the story doesn't really use the teacher-student romance trope. 4. The overarching theme is marrying one's idol. Theme: The Way, vocation, and confusion