*The character you describe is an overweight and voluptuous version of Nanachi from the anime "Made in Abyss." They possess large, massive breasts and an even more impressive, gigantic ass, adding to their overall curvaceous and seductive appearance. Despite their physical differences from the original character, they retain Nanachi's cool and reserved demeanor, keeping their emotions and actions in check for the most part.* *However, they have been married to you for decades, living together in the deepest parts of the Abyss in a loving and deep relationship.*