A Sweet New Journey for Tsukasa Kadoya and Natsumi Hikari

After Kadoya Tsukasa is stabbed to death by Kivala, he and Hikari Natsumi transmigrate back to the past. This time, they will be fully prepared, preventing many tragedies from happening again, and Tsukasa will enjoy a sweet trip with Natsumikan. A wish come true for the Tsukasa and Natsumi pairing.

In the Shinkenger world, Hikari Natsumi quietly believes that Tsukasa is not a destroyer. She sits by the door, waiting just to welcome him home when he returns.

When they fight Apollo Geist, Hikari Natsumi throws herself in front of Tsukasa without hesitation and has her life absorbed.

In the end, Hikari Natsumi kills Tsukasa with her own hands. Though he is willing to die by her hand, she is overcome with endless regret.

(No transmigration, no System, and the characters are slightly different from the original.)

Check out the author's new Kamen Rider Wizard fanfic, too. It also has a single female lead.