Valentine's Day - a day of love, pink, and chocolates. In the spirit of the coming holiday, Hiratsuka-sensei gives her Modern Japanese periods an assignment: write a love letter. So naturally, Hikigaya writes a love letter to the person he loves the most.

Story 3.3: "I guess that's true. I suppose I'm blessed my extremely cute underclassman is taking time out of her busy schedule to spend time with me." After Hachiman bares his heart to the Service Club, can the three of them continue as friends, or perhaps be even more? A series of slice of life chapters and small arcs about the Service Club and their various acquaintances

At first glance, Hikigaya Hachiman seems no more miserable or cynical than before—but to the trained eye, it's obvious he's suffering. A certain event during his senior year involving a certain person has wrought devastating effects on his psyche. Hachiman sets out to right the wrongs of his past because after all, failure is nothing but the spice of youth.

Fragments of the conflicting, complicated relationship between Maou and Emi. May contain Novel Spoilers.