Rein Chelka, usually known as Dust, is a warrior and a member of the party consisting of Taylor, Keith, and Lean. He is a major supporting character in the main Konosuba series, as well as the main protagonist of the Kyakkou spinoff series. Growing up, Dust was subject to a very strict upbringing; while a dragon knight, his mannerisms and speech patterns were always extremely formal. As a result, he was described in terms of being "stiff" and "humorless," in direct opposition to his secret, free-spirited princess companion. His accomplishments led to him being regarded as the perfect stereotype of the knight in shining armor who rescues the damsel in distress and makes the ladies swoon. After coming to Axel, he adopts a demeanor very similar to that of Kazuma, especially in regards to their perverseness and laziness. He is famous for his delinquent behavior in Axel and has accumulated debts with multiple people including his own party members. He has purposely gotten himself thrown into jail many times simply because it was better than being outside, not minding his criminal record much. Before coming to Belzerg, Dust was known as "Rein Chelka," the son of an impoverished, lower-ranking noble family from a neighboring country called Braidle. Despite originally having nothing going for him as the son of a household with no future, he was able to work his way up to become a royal knight at a young age. One day, after receiving a warrant to search a mansion, he discovered a young, injured, wary Faitfore locked in a cramped cage inside the basement. Loved by dragons since birth, he quickly convinced Faitfore to lower her guard and proceeded to form a covenant with her. Because of this, he was granted the rare class of "Dragon Knight", and the two would proceed to have many adventures. As his deeds began to pile up, he became renowned as the "strongest spearman in the country," gaining a reputation Lynn describes as the "handsome, dependable and perfect ideal of a knight". His prestige grew to the point that stories about him spread outside of his homeland and across the continent; his good deeds were unparalleled. Between the epic escapades he embarked on, Dust spent much of his time with dragons, many-a-time having fallen asleep in the stables. During these interim periods, he began to develop a relationship with the tomboyish princess of his home country who would often come and talk, most of the time making idle chatter but from time to time also consulting the Dragon Knight on serious matters. Throughout these conversations, it can be said that Dust opened himself up; while he still maintained the image of the perfect chevalier, he spoke honestly with her, and as a result of this, she began to foster feelings for him and vice versa. After a time, the princess of his home country absconded with him (in his words, she forced him to do so) so she could experience a pseudo-honeymoon, but eventually she was returned to the castle. As a result of this, Dust's household was disbanded and his status as nobility was revoked, and so he came to Axel, becoming the delinquent the inhabitants of the town know.