Oota, an emotionally abrasive high school boy, decides to make it his life's goal to provoke a reaction from his classmate Kashiwada. Hilarity Ensues.
Written and illustrated by Fuyu Azuma, the manga also has a spin off series named This Girl Will Express Herself in 100 Days which is exactly as it entails.
The manga provides examples of:
- Ambiguously Gay: Tabuchi is grossly obsessed with Kashiwada. She even made a fan club.
- Beach Episode: Chapter 34 entirely revolves around Oota and friends hanging out at the beach as well as a tidbit of Fanservice courtesy of Oota's older sister.
- Big Brother Instinct: Kashiwada's brother nearly ends Oota out of a misunderstanding.
- Breaking the Fourth Wall:
- When the kids fail one of their tests, Sata notes that he didn't fail because he wasn't in the panel shot.
- When Kashiwada's older brother assumes that Oota was taking advantage of his sister, Oota notices that the font doesn't match his expressionless face.
- Several jabs are taken at Kashiwada having a small dot for a mouth often when she is eating.
- The Bully: Oota lives to harass Kashiwada in an attempt to elicit some emotional response from her.
- Dissonant Serenity: Kashiwada's older brother always smiles despite the circumstance. Even when he threatens to rip Oota to pieces because of a misunderstanding.
- Emotionless Girl: Obviously so as this makes up most of the premise of the manga.
- Everyone Can See It: Nearly everyone can see that Kashiwada has feelings for Oota, but Oota himself is clueless about it. Alternatively, he could realize this to be the case on a subconscious level, but chooses to deny it.
- Genki Girl: Odajima who loves reading the expressions of other people.
- Hidden Depths: Chapter 27 reveals that Oota is a great cook when he cooks vegetable soup for Kashiwada.
- Jerkass: Oota does whatever it takes to get some kind of response from Kashiwada even if it involves harassing her.
- Jerk with a Heart of Gold: Nevertheless, Oota does realize at times when he went too far in his bullying and apologizes to Kashiwada for it in his own way.
- Kick the Dog: When Oota invites Kashiwada to his room in an attempt to scare her with cheap tactics, he mockingly tells her that she wasn't a girl. When he saw that it hurt her, he quickly changes tune explaining that he thought that she was more special.
- Mistaken for Gay: Sometimes when Oota's pranks blow up in his face, the teacher would assume that his advances were towards him making the situation even more awkward.
- Perpetual Smiler: Oota's older sister sports it whenever she appears.
- Sick Episode: Kashiwada becomes sick with a cold as a consequence of her getting soaked in Chapter 27.
- The Stoic:
- Kashiwada has an emotionless glare as a default expression.
- Sata is an apathetic young man who acknowledges the assumption that he was dead inside. The only real emotion he projects is one of amusement for Oota and Kashiwada's antics.
- Trademark Favorite Food: Beans and bean bread are Kashiwada's favorites. So much so, Tabuchi buys all the bean bread at the school store...only to realize she got the wrong kind.
- Tranquil Fury: Kashiwada's older brother angrily clasps the table he and Oota were sitting at and goes as far as to crack the wall by slamming it with his fist. And yet, his facial expressions never change.
- Troll:
- Kashiwada tends to like to play with Oota.
- Oota's sister loves to mess with him one instance being where she forged a letter to Kashiwada in which Oota "confesses" to her. She also has a shit-eating grin on her face at all times.
- Tsundere: Oota becomes so invested with trying to elicit a reaction from Kashiwada, he refuses to acknowledge that he does it in part because he liked her to an extent.
- Umbrella of Togetherness: Oota and Kashiwada both share on in Chapter 27, albeit Oota tries to keep it a secret from the other students when walking home with her.
