This ending isn't just a shock for the sake of it; it's a necessary dismantling of Araragi’s identity as he is forced to face the ultimate consequence of his lifestyle as a "pseudo-vampire".
How do you think Araragi’s changes after the events of this season? Koyomimonogatari
We see how his failure to truly understand others—like Oikura Sodachi—leads to deep-seated resentment. His kindness is often a form of "foolishness" because it ignores the actual needs of the person in front of him. This ending isn't just a shock for the
Most episodes deal with minor mysteries that Araragi solves through conversation rather than supernatural combat. This reflects the reality that most of our lives are lived in the "quiet parts" between major events. Koyomimonogatari