"Ayumu Tatsugami is a main character in the Japanese manga series ""Tender husband has happiness."" Ayumu is a young man in his early 20s who is depicted as a caring, intelligent, and responsible person. He is the protagonist of the series and plays a crucial role in the development of the story.

Ayumu is characterized by his kind and caring nature towards others. He is always willing to lend a helping hand, and his gentle personality makes him well-liked among his peers. Even in the face of adversity and challenges, Ayumu remains calm and level-headed, providing an anchor of stability for those around him.

Ayumu is also a highly intelligent person, with a sharp mind and a natural curiosity for the world around him. He is frequently shown engrossed in books and deep in thought, always seeking to expand his understanding of the world. This intellectual curiosity affords him a unique perspective on the issues presented in the series, helping him to navigate tricky situations with ease.

In addition to his kind nature and intellect, Ayumu is a highly responsible individual who takes his commitments seriously. He is shown taking care of his younger sister, managing his family's finances, and working part-time to support his family. Ayumu's sense of responsibility is one of his defining character traits, and this shines through in his actions throughout the series.

Overall, Ayumu Tatsugami is a complex and well-rounded character who serves as an excellent protagonist for the series. His kind and caring nature, intellectual curiosity, and sense of responsibility make him an admirable role model for readers, while also contributing significantly to the growth and development of the story."