Season 1: The club forms and its members help others, while the car-accident link between the leads is revealed. Hachiman's self-sacrificing methods succeed, but the cost to Yukino and Yui is planted.
Season 2 ("Too!"): The trio face the fakeness of their club. Hachiman states that he wants something genuine, and the season ends on unresolved tension about what that means for them.
Season 3 ("Climax"): Yukino asks for support to become independent. Hachiman and Yukino pursue the same goal by separate paths, which drives them apart. The latter half focuses on Yui, whose confrontation is the emotional peak. The finale, "And So, the Curtain Rises on a Genuine Youth Romantic Comedy", resolves the love triangle, with Hachiman ultimately choosing Yukino, a choice debated by fans.