Raynesia

Raynesia ("Lenessia" in the Crunchyroll translation of the anime) is a member of clan Corwen, the most prestigious clan in the East. She later becomes the Ambassadress of the League of Freedom Cities Eastal to the Round Table Alliance in Akihabara

Female nobles don't have any real authority and instead exist for political marriages. This is the reason why she is so lazy and unmotivated, because she knows that she will never be in a position to do anything worthwhile and her only is role is to just look pretty and perfect.

Appearance
Raynesia is well-known for her beauty, although that tends to irk her because she is aware of her position, which essentially required her to look pretty and nothing else. Her attire is left up to her personal maid, Elissa, while Raynesia herself prefers to wear comfortable pajamas.

Personality
Her personality is laid-back, gloomy, and lazy to the core. She would prefer to do nothing except eating, daydreaming, and napping for the entire day. She also dislikes taking showers. Nonetheless, being raised in a royal family, she knows how to act properly in society.

Whenever she daydreams in the public, due to her beauty, people misinterpret her behavior as being concerned about the future, and thus she has the nickname "cultured lady with a sense of sorrow." She only acts as herself in front of Krusty, who she realizes can see right through her facade. Thus, there's no point in putting on an act in front of him.

Given all of her shortcomings, she can be quite bold and straight to the point when a problem must be solved. For instance, when an army of 20,000 Goblins began invading cities, she voluntarily traveled to Akihabara to ask for aid from Adventurers while most nobles were still bickering among themselves about how best to exploit the Round Table Alliance to their advantage.

Palace of Eternal Ice arc
Raynesia and Elissa appear before Duke Sergead Corwen when the spies in Akiba return.

Return of the Goblin King arc
Raynesia was told by her father to stay at the Ancient Palace of Eternal Ice with her Grandfather. However, due to the bickering among the nobles on how to use the Adventurers to their advantage, she defies her father's commands and goes to personally plead for the Adventurer's assistance against the goblin hordes. Her outlook on societal classes was completely turned upside-down as she witnessed how well-educated the Adventurers were, in comparison to the military officers and nobility of the People of the Land. Her impassioned speech to the crowds, later convinces Krusty and the other Adventurers to lend their aid.

Libra Festival arc
Because she acted entirely on her own without the authority of the Nobles, she found herself forced to shoulder all responsibility, and had to go to Akihabara to become the Lander ambassador to the Adventurers. Ironically, Krusty tells her that since Adventurers don't care about politics, she gets to just laze around all day long, exactly what she wanted much to her happiness.

When she shortly realizes that she's now swamped with requests between the Guilds and Landers and now barely even has time for herself. She feels that she got conned by Krusty as a result.

Fallen Guardian arc
Raynesia finds herself swamped by those joining in on her "tea party," Adventurers that were assigned to protect her while several of the Round Table Alliance's guild masters were away on various missions. Maryelle in particular takes great joy in dressing her up, while Raynesia admires the stoic Rieze.

However, learning about the murderer makes her tense, and even more so when she learns from Kunie clan member Kinjyo that this murderer is actually one of the Royal Guard. Although she contemplates turning off the magic circuit that allowed the Mobile Armor to operate, she falters upon learning that it would also end the Guard system and cut off Akiba's protection from monsters for at least 10 years. Unsure of what to do, she can only sit by as Akatsuki, who had overheard her conversation, goes to fight him. In the meantime, she is accompanied by Rieze, from whom she realizes that even after all this time, she really didn't now how Adventurers lived or thought.

Upon the death of both the ninja and Soujiro Seta, however, both Akatsuki and Raynesia are berated for their naivete and unwillingness to work with others.

Rieze and Henrietta work together to come up with a strategy to defeat the rogue Guard, and Raynesia is the one visiting Kinjyo this time, to ask him to turn off the magic circuit allowing for the operation of the Royal Guard. He repeats the downfalls of turning it off, all which she knew and was prepared for. Even though she was still afraid and wanted to just run away, she determines to herself that would go through with the plan. .