Extra 40.1

**Extra 40.1** is an Extra in *Boku no Kokoro no Yabai Yatsu*.

## Summary

* Yamada is wearing some HEAT-TECH clothing underneath her school uniform, and has her cardigan and shirt pulled over to show Ichikawa. He considers that this means that for today, this is her underwear, leaving him nervous.

* The next image is a series of small boxes in a case, showing three different varieties of boxes. One with Yamada, one with Ichikawa, and one with them both. The images are also shown without the boxes.

* Another image is of Ichikawa also getting a HEAT-TECH undershirt, and putting it on before school. He heads out and sees Yamada on the way, then considers that underneath their clothes, they are matching.

* A page of Yamada amidst a veritable explosion of various sweets. Ichikawa is in the background, with his back towards the camera.

* Next, Yamada is showing off her Valentine's haul while eating a chocolate-filled bun. As she snacks, he looks into her bag and checks out the various sweets, including a special chocolate called "Black Thunder, You Can Tell At Just A Glance It's Obligatory Chocolate." She asks him what kind of chocolate he would consider not to be obligatory, and he thinks about homemade, or fancy chocolates, telling them through words, or even chocolate shaped like a heart. While he talks, she stuffs the chocolate buns suddenly in his mouth, and though annoyed at the suddenness, he thanks her for it. She sees a bit of chocolate stuck on his face from the bun, and acts as though she'll clean it off, but instead spreads it around in the shape of a heart before leaving.

* Another image is a bunch of cards of previous color artworks on special cards.

* Taking place in the middle of Chapter 40, this shows how they got into the position they were in inside the storage closet. Ichikawa says that the room is empty as they enter inside. They continue in, and he says that it would be tight for two people to be in there, but at that moment she sits on a packed-away desk, half-wrapping her legs around him.

* A color image is Yamada in her bed.

* In the library, Yamada points to Ichikawa and declares he is like a cat, but then asks him, what about her, giving the options of dog or cat. He thinks there is no debate, and she is like a large-breed dog. Testing his hypothesis, he grabs her container of snacks, and, when she suddenly moves to take them back, holds out his hand, thinking, "Stay." She pauses momentarily, and he thinks he has an answer, but she suddenly leans up to make contact with the top of her head and his hand, rubbing against his palm aggressively. He concludes she must be like a cat.

* The next image is of Norio's real-life cat, Mamelon.

* Another image is of Yamada happily playing with a small cat.

* Yet another color image is of Yamada in a high-school sailor uniform, on the set of her movie.

* A follow-up to the first part, Yamada suddenly gets self-conscious about having rubbed her head against Ichikawa's palm, and tries to play it off as her just getting up and him being in the way. She offers a hand, as if to ask for a snack, and when he puts a stick in her grasp, she takes his hand, and shakes, concluding he might be more like a dog.

* Another page is of Yamada advertising the next chapter.

## Trivia

* HEAT-TECH is a special clothing line by UNIQLO that utilizes special fibers that captures moisture in the body and uses it to generate heat.

* Much of their discussion regarding chocolate is about the concepts of "Giri" (obligatory, non-romantic) and "Honmei" (true-feelings, romantic) chocolate.

* The cat that Yamada plays with in one of the artworks has half his face "covered" in black fur, similar to Ichikawa's hair. It's likely supposed to symbolize him.

* This is one of the "Valentine's Extras" that were later repurposed for the manga proper when the in-universe Valentine's Day occurred.