Jishou Akuyaku Reijou na Tsuma no Kansatsu Kiroku.

This manga serves as the official adaptation of the sequel to "An Observation Log of My Fiancée: A Self-Proclaimed Villainess." Picking up where the original story left off, the narrative shifts its focus from a royal engagement to the realities of wedded life. Set six months after Cecil and Bertia officially tie the knot, the series explores the evolving dynamics between the two protagonists as they navigate their new roles as husband and wife. Bertia continues to embrace her self-declared identity as a villainess, bringing her unique perspective and theatrical flair into her daily routine within the royal household. Meanwhile, Cecil remains ever-attentive, carefully observing his bride's eccentric behavior with the same quiet fascination he held during their courtship. Rather than facing grand political conspiracies or dramatic romantic hurdles, the couple finds themselves adjusting to the quieter, yet deeply endearing, challenges of marriage. Their continued interactions highlight a relationship built on mutual understanding and gentle affection, offering readers a heartwarming continuation of a beloved romance through the lens of everyday married life.