Recently My Sister Is Unusual light novel introduces Mitsukis emotional trauma resulting from her parents divorce. This premise explores Mitsukis struggles with feelings of abandonment and her attempts to cope with her new family dynamics. However while the novel briefly touches on these complexities it falls short of consistently exploring this potentially profound theme throughout the narrative which is expected from your average horny harem school romcom. The novel faces challenges in maintaining its course and direction. Chapter 4 introduces a forced romantic tension between Mitsuki and Yuuya central characters meant to drive the plot. Unfortunately the lack of genuine emotional development between them renders their relationship feeling contrived and inauthentic. For instance the love quest in chapter 5 where Mitsuki and Yuuya are tasked to act like a couple fails to evoke genuine romantic chemistry leading to awkward and cringeworthy situations that do little to advance the narrative or deepen character connections. Additionally Hiyori an important character suffers from underdevelopment. Despite her initial role as a mischievous ghost she quickly becomes onedimensional primarily serving as a source of comedic situations. In chapter 6s beach resort antics Hiyoris constant mischief disrupts the narratives potential for exploring her motivations or feelings more meaningfully. Furthermore the love triangle involving Mitsuki Yuuya and Hiyori lacks depth and complexity. The novel often resorts to predictable scenarios such as Hiyoris frequent attempts to make Mitsuki and Yuuya horny for each other without delving into the characters conflicting emotions and desires. This lack of substantial exploration weakens the overall impact of the love triangle diminishing its potential for genuine tension and intrigue. One of the novels gimmicks is the TST ability which allows Hiyori to take over Mitsukis body temporarily. While this concept presents an opportunity for a deeper exploration of identity selfdiscovery and consent it is predominantly used for comedic effect. Chapter 7s folk dance scene is one such example where Hiyoris attempts at intimacy are played for laughs trivialising the potential seriousness of the situation and the implications of the TST ability. It fails to capitalise on its plot elements and gimmicks. The lack of coherence and consistent character development detracts from the narratives potential impact leaving much to be desired except for providing lousy tasteless horny softporn artworks.