https://www.cmoa.jp/title/312394/

*"Will you make a contract with me?"* In a remote rural area of ​​19th-century France, Nini, a girl abandoned by her parents, was dying. At that moment, a beautiful demon appeared before her. His name was Dantalion. He was a thoughtful veterinarian specializing in magical beasts, with a sweet tooth. Nini made a contract with Dantalion and became a demon's familiar in the demon world—preparing herself for a harsh life. However, she was unexpectedly treated with great care and protection, and little by little, the frozen parts of her heart began to melt... This is a twisted yet heartwarming master-servant story woven by the sweet demon Dantalion, the lazy houseguest demon Belphegor, the human Nini, and the magical beasts. (Source: Kadokawa, translated)

Manga Anthology based on the anime "Fushigi no Umi no Nadia".

There are things that were never meant for humans to know. In the Year of the Lion, on the twentieth day of the eighth month. The notorious villainess, Adia Drowers, was publicly executed. That is the start of the mystery. As Adia walks onto the gallows for her beheading, she accidentally steps on the foot of Yuniht, the young apprentice executioner. “Please forgive me. It was unintentional.” Hearing the apology, Yuniht senses something different about Adia, compared to the usual criminals. Then, in the final moment before the axe fell, she whispers, “A single silver holy flower.” Deeply unsettled by the final words of this notorious villainess, who was accused to have committed every conceivable atrocity, Yuniht wonders if he should investigate further. But by chance, he learns that someone—without revealing their identity—has already commissioned him to look into her past. Using his unique ability—the power to share the strongest memory of anyone he converses with—Yunicht goes to meet with the people who had been deeply connected to Adia in life, gathering their testimonies. Eventually, he arrived at a terrifying truth that he wishes he would never have known—. (Source: Shogakukan, translated)

Tengoku Yoi, a perfect beauty who excels in both academics and sports, heads to the classroom in anticipation of the start of a brilliant high school life. However, during self-introductions, it's not her cuteness that causes a stir in the room... but the intimidating boy, Onizuka, who declares, "I'm going to be the heroine of this school!" (Source: Shinchosha, translated)

After getting drunk at a company party, Fumi is given a ride home by her favorite senior, Shirota, on his back. He invites her back to his room... a fait accompli, huh?! Just as Fumi is daydreaming about something naughty, all she sees is a burning apartment building! What?! Why is my house on fire?! Having lost her place to live, Fumi manages to force her way into Shirota's apartment. However, the extremely strict Shirota not only makes a move on her, but tries to kick her out... (Source: Hakusensha, translated)