"Aster is one of the main characters in the Japanese manga series ""Don’t Do This Your Majesty!"" written by Mikan Uji. Aster is a talented knight who serves under the Royal Knights of Feltland. He is highly skilled in combat and is a loyal knight who always puts his duty and the safety of his people first.

Aster is a tall, muscular man with light brown hair and piercing blue eyes. He wears a traditional knight's attire, which includes a silver-plated armor and a dark blue cape. He also carries a sword, which he can wield with great precision and power.

Despite his serious and stern demeanor, Aster has a soft spot for his close friends and especially for Princess Altina, whom he has feelings for. He is often seen going out of his way to protect her and keep her out of harm's way. His loyalty to the princess is also reflected in his strong disapproval of Prince Eric's actions and his unwavering support for Altina as the rightful heir to the throne.

Aster is a man of few words and prefers to let his actions speak for him. He is highly disciplined and dedicated to his training, which is why he has achieved the rank of a captain at a young age. He is always willing to go the extra mile to ensure the safety of his people and will not hesitate to put his life on the line to protect the kingdom.

Despite his many strengths, Aster also has his weaknesses. He has a tendency to be overly protective of those he cares for, which can sometimes lead to him putting himself in danger. He also struggles with his feelings for Princess Altina, which can sometimes cloud his judgment and make him act impulsively.

In conclusion, Aster is a complex and multidimensional character who plays an important role in the series. He is a skilled and loyal knight who will stop at nothing to protect the kingdom and his loved ones. He is a character who readers will no doubt root for as the story unfolds and he continues to face new challenges and obstacles."