Power and its consequences could be a theme. As the character gains power over the decade and becomes a legend, there are probably implications of how that power affects them and those around them. Also, the theme of friendship or relationships might be present. Along the journey to becoming a legend, the character may have made allies or had relationships that influenced their path.
There's 'That Time I Got Reincarnated as a Slime'. In this light novel, the main character, who starts off in a rather unassuming state, gradually becomes a powerful and legendary figure. It shares the concept of growth and achieving a legendary status over time, which could be related to 'I became a legend a decade later light novel'.
I'm not sure specifically as I haven't read it. But generally, it might be about a character's journey to becoming a legend over the course of a decade.
Tsunayoshi was hit by the 10-year-old rocket launcher and turned into an elf because the 10-year-old rocket launcher malfunctioned.
Tsunayoshi was the protagonist of " All27 Tutor ". He was a high school student with extremely high physics and mathematics skills, and also a genius teacher. By chance, he had obtained a magical weapon called the " Ten Years Rocket Launcher " that could instantly transform into a small elf with more flexible mobility.
However, this weapon also had a certain flaw. If it was not used properly or if there was a malfunction, Tsunayoshi would turn into an elf and could not return to its original appearance. In one of the competitions, Tsunayoshi was troubled by the failure of the rocket launcher and had to cheat to win the competition.
Later, Tsuyoshi met a mysterious girl who told him that if he wanted to return to his original appearance, he had to find the fault of the 10-year rocket launcher and solve it. So Tsunayoshi began an adventure and finally found the fault of the 10-year rocket launcher and successfully solved it. Then, he returned to his original appearance and continued to teach the students.
Chapter 35 of " Music Every Night " was about the emotional entanglement between Qiu Lian and He Yiming.
In this chapter, Qiu Lian and He Yiming had an argument and decided to separate for a while. During this period of time, Qiu Lian felt very sad, but she also began to think about whether there was still room for redemption between the two of them.
In the following chapters, Qiu Lian and He Yiming gradually recognized each other's strengths and weaknesses and reconciled. In the end, their relationship was consolidated and they became a pair of happy lovers.
The main character's surname is Li, but the plot includes the history of the Li Tang period. There is also a plot about a certain counterfeit of the Tang Dynasty. I hope you like this fairy's recommendation. Muah ~😗
" Myth: I Became the Tyrant King Zhou " was a novel about reincarnation. The main character was Li Qing and Su Daji. The story was about Li Qing and Su Daji transmigrating to become the last king of the Shang Dynasty, King Zhou, Di Xin. King Zhou was described as a cruel, dissolute, and indulgent tyrant. He faced the chaos of the world and the rebellion of Western Zhou. This novel was written by the author, Situ Qingchen, and it was currently being published.
The best fiction of the decade often has complex characters. For example, in 'The Goldfinch' by Donna Tartt, the main character Theo goes through a lot of growth and change. These characters feel real and make the readers care about their fates.