Nurturing the Hero to Avoid Death - Chapter 28.2

In an unexpected accident, Davis Allen had lost his legs, his freedom and his position as the heir of the Allen family. His life became lonely and frozen but a forced union With Jessica Brown became a turning point.... Jessica Brown, an unloved and unwanted daughter is traded to marry a crippled in place of her half sister and the future of the company while the perpetrators' will have to sit back and enjoy the glory....Why should it be so? Why does she have to bear the suffering when she is the elusive Doctor Sica, the famous Lady Bright and the unparalleled stock god ...

His Royal Highness the King of Han, who was afraid of the dark and ghosts and loved to cry, has always been the good baby of the princess.
Until one day, His Royal Highness the King of Han found a book in the bookstore…
Picture book?
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Search keyword: Protagonist: King of Han, Princess of Han

- Description from novelbuddy

A 13-year-old deaf teenager living in the 21st century suddenly found himself as a young boy in Japan during the early 1900s. With two World Wars, two nuclear bombs, Hitler and many other disasters awaiting his future, he thought things couldn't get worse.Except it did.He found out later on that he had actually reincarnated into the world of Demon Slayer where man-eating demons ruled the night. He thought things couldn't get worse.Except it did.But hey! At least he had unparalleled talent, incredibly special eyes and future knowledge.How will the story of Demon Slayer change with the addition of this unique character? Will so many still die if the Hashiras had one more pillar in the final battle?Or will the story end on a much happier note?