Okita Soki was a fictional character that appeared in many Japanese novels and anime. There are many romance novels about him. Here are some possible plots: Okita Soki was a handsome, smart, and brave samurai. He fell in love with a gentle and beautiful woman named Mikoto Uehara. However, Mikoto Uehara was in love with another samurai named Yamamoto 56. Okita Soki sacrificed his own life to save Mikoto Uehara, but he eventually fell under Yamamoto 56's gun. Okita Soki was an ordinary person. He transmigrated to another world and met a woman named Haru. Haru was an ordinary girl, but she had a special ability to read Okita Soki's mind. Okita Soki was attracted by Haru's ability and established a relationship with her. However, when he returned to the real world, he found that Xiao Chun's ability would lead to his death. He had no choice but to choose between the two worlds. Okita Soki was a fictional historical figure who traveled to the modern world and met a woman named Kuroda Kiyoshi. Kiyoshi was a smart, independent, and beautiful girl. She had developed a strong interest in Okita Soki. Okita Soki was attracted by Kiyoshi's beauty and talent and developed a relationship with her. But he knew that he had to face the pressure of history and moral norms, or he would not be able to become a true samurai. The above are just some possible storylines. In fact, there are many other possibilities for Okita Soki's romance novel, depending on the author's imagination and creative will.