The heroine is a genius with high IQ but low EQ, and is a bit arrogant and doesn't like to talk much.
The second brother is a naughty scumbag with a high emotional intelligence and a mediocre IQ, but is arrogant and loves to make trouble.
Because the heroine is the youngest child in the family and is very special, the family's attention is all on the heroine. The second brother is sometimes jealous but loves the heroine and the family very much.
The male and female protagonists met when the female protagonist was in her third year of high school. The female protagonist was 14 and the male protagonist was 17.
The second brother and his two male protagonists met after the college entrance examination. The second brother was 18 and the male protagonist was 18.
A short clip from the second brother; "Do you think you are the one receiving it, or am I the one attacking it?"
"..."
Short clip of the heroine: "Nono! I've liked you since I was a senior in high school, but I never had the chance to confess to you, but now I have, I hope you can be my girlfriend!"
"Get away! You touched my experimental equipment!"
Yes, this article is a story about pure love and romance, or a story about coming of age with a little bit of science fiction and a family comedy.
The author himself is not a genius, so the heroine cannot be a genius, so the author tries his best to make others look stupid.
Remember that the male protagonist of the heroine and the male protagonist of the second brother are not the same person! ! !
Intention: If you dare to tear up my homework, I will hug your thighs