The fifth season of Monogatari series and the second season that wasn't adapted into an anime, explores Araragi's life at university. However, what truly sets "Monster Season" apart is its unique style of detective storytelling. Throughout most of this season, the narrative begins with someone going missing, prompting Araragi and the other characters to embark on investigations. The detective work presented is of a commendable quality, but there is a noticeable problem – the existence of the supernatural often robs the reader of the opportunity to solve the mysteries itself. Nonetheless, "Shinobumonogatari" and "Yoimonogatari" manage to sustain a high level of suspense, offering compelling narratives. Incontrast, "Amarimonogatari" and "Ougimonogatari" exhibit kind of lower level. Notably, "Yoimonogatari" deserves a special mention for its poignant cautionary tale, striking emotional chords with readers. "Shinobumonogatari" may pique the interest of those who consider Oshino Shinobu as their favourite character. At the end, "Shinomonogatari" weaves an overarching "big plot" into each chapter and introduces some intriguing plot twists.

In conclusion, as someone who read only unadapted seasons, the level of quality remains high. "Yoimonogatari" might even stand out as one of the best chapters in the series. I wholeheartedly recommend this season, as well as every other season in the Monogatari series, to all viewers.