Well, it can be considered popular. It has a certain following. The world - building in 'ragna crimson light novel' is really appealing, which is one of the reasons for its popularity. Also, the character development is engaging, making readers want to keep reading to see how the characters grow and change throughout the story.
Yes, 'Crimson Tide' is based on a true story. It's about a tense situation on a nuclear submarine where there are conflicting orders and a battle of wills between the captain and the executive officer.
The Crimson Tide is purely fictional. It was written to captivate audiences with an engaging plot and characters rather than being based on real events. However, it might draw inspiration from various real-life elements or themes to make it feel more relatable.
Time travel forces Ragna to face his past, which can make him more self - aware. He may see the mistakes he made in the past and strive to correct them, leading to personal growth.