**1. Jara (Reincarnation of Shuvo):**

- **Name:** Jara

- **Age:** Varied due to reincarnation, initially around 5 years old

- **Relatives:** Emperor Sei (Father), First Prince (Brother), Megumi (Wife), Sea (Daughter), Ker (Son)

- **Love Interest:** Megumi

- **Appearance:** Initially a 5-year-old in the game world, later matures into a ruler with regal bearing.

- **Summary:** Shuvo, a normal high school student and gamer, reincarnates as Jara in a video game world. Driven by a desire to change the fate of the game's characters, he transforms Jara from a villain to a hero. Jara's journey involves reshaping relationships, becoming a just ruler, and ensuring a brighter future for the kingdom.

**2. Megumi:**

- **Name:** Megumi

- **Age:** Varied due to game setting, initially portrayed as the game's heroine

- **Relatives:** No specific relatives mentioned in the game setting

- **Love Interest:** Jara

- **Appearance:** Depicted as a strong and determined woman, initially designed as a classic game heroine.

- **Summary:** Megumi, the central character in the game, starts as a heroine aiming to defeat the demon king. Shuvo's reincarnation as Jara alters her story, leading to a deep connection with Jara. Megumi's character evolves as she becomes an integral part of Jara's life, contributing to the kingdom's transformation.

**3. Emperor Sei:**

- **Name:** Sei

- **Age:** Elderly

- **Relatives:** Jara (Son), First Prince (Son)

- **Love Interest:** Not specified

- **Appearance:** A wise and experienced ruler with regal attire.

- **Summary:** Emperor Sei initially rules the kingdom, and his decision to pass the throne to Jara shapes the course of the story. He demonstrates wisdom and affection for his sons, contributing to the kingdom's stability and prosperity.

**4. First Prince:**

- **Name:** Not specified

- **Age:** Adult

- **Relatives:** Jara (Brother), Sei (Father)

- **Love Interest:** Not specified

- **Appearance:** Distinguished, representing the nobility and leadership.

- **Summary:** The first prince, initially in line for the throne, willingly steps aside to allow Jara to become the emperor. His supportive and understanding nature contributes to the familial bonds and the kingdom's well-being.

**5. Shuvo (Real World):**

- **Name:** Shuvo

- **Age:** High school student

- **Relatives:** Not specified

- **Love Interest:** Fondness for the game character Megumi

- **Appearance:** Typical high school student

- **Summary:** Shuvo, the original persona in the real world, is a high school student with a passion for video games. His wish to change the game's narrative leads to his reincarnation as Jara, setting the stage for a transformative journey in the game world.

The interplay of these characters weaves a rich narrative, blending elements of fantasy, familial ties, and personal growth within the confines of a video game setting.