Koishita Hito wa, Imōto no Kawari ni Shindekure to Itta. - Imōto to Kekkon Shita Kataomoi Aite ga Naze Imasara Watashi no Moto ni? To Omottara #4

This volume is part of a manga adaptation based on the light novel series written by Minori Hinohara, which explores themes of betrayal, romance, and complex family dynamics within a fantasy setting. The series, originally serialized digitally, follows the protagonist's journey after she is cast aside in favor of her sister, only to find the man she once loved returning to her life under unexpected circumstances. The narrative is noted for its emotional weight and the nuanced evolution of the protagonist's perspective as she navigates her past feelings and new realities.

The manga adaptation features character designs and illustrations that emphasize the atmospheric and dramatic tone of the source material. Produced to bring the light novel's internal monologues and intricate relationship webs to a visual medium, the art style balances delicate character expressions with the structured world-building typical of the genre. Upon its release, the volume was received by readers as a pivotal installment that shifts the power dynamics between the lead characters, solidifying the series' standing among fans of character-driven josei and shoujo-adjacent fantasy works.