It has a unique setting and a complex web of relationships. The way the protagonist overcomes challenges in pursuit of revenge makes it stand out. Also, the writing style is engaging and keeps you turning the pages.
I don't have enough information to say who exactly 'Strongest Hero Shion' is. Since I'm not familiar with the specific novel, it could be a character created by the author with unique powers and a backstory.
The antagonist could be a super - villain who has a personal vendetta against the hero. He might have used his influence to make the hero's life a living hell and made everyone think the hero was worthless, like garbage. The hero's revenge is all about taking down this super - villain and restoring his own honor and the safety of the world that the villain has been threatening.
In many novels, the strongest hero is often the one with the most unique and powerful abilities. In the context of this 'lvl 2 novel', perhaps there is a character who has mastered some rare form of magic or combat skill. For example, if the novel is set in a fantasy world, a hero who can control all elements might be considered the strongest. But again, without detailed knowledge of the plot and characters, it's just speculation.
It's hard to determine a single strongest character as it depends on various factors. Deku has great potential with One For All and Shigaraki has become a major threat with his evolving powers.
The strongest hero in Invincible Heroes 3 was uncertain because there were many powerful heroes in the game, each with their own unique skills and attributes. In the game, the conditions for victory not only depended on the strength of the hero, but also many other factors such as the number, quality, skills, and tactics of the army. Therefore, the strongest hero in Heroes 3 depended on the situation of the game and the player's strategy.