Youkoso Jitsuryoku Shijou Shugi no Kyoushitsu e Vol.1

Title: Classroom of The Elite
Alternative Names: Classroom of The Elite (English); Youkoso Jitsuryoku Shijou Shugi no Kyoushitsu e (Japanese); ようこそ実力至上主義の教室へ

Description:
Kōdo Ikusei Senior High School, a leading prestigious school with state-of-the-art facilities where nearly 100% of students go on to university or find employment. The students there have the freedom to wear any hairstyle and bring any personal effects they desire. Kōdo Ikusei is a paradise-like school, but the truth is that only the most superior of students receive favorable treatment.
The protagonist Kiyotaka Ayanokōji is a student of D-class, which is where the school dumps its "inferior" students in order to ridicule them. For a certain reason, Kiyotaka was careless on his entrance examination and was put in D-class. After meeting Suzune Horikita and Kikyō Kushida, two other students in his class, Kiyotaka's situation begins to change.

NOTICE: This story isn't mine and all credits are given to the author Kinugasa Shougo (衣笠彰梧) and the artist Tomose Shunsaku (トモセシュンサク) and the translators. Feel free to read this on https://www.novelupdates.com/series/youkoso-jitsuryoku-shijou-shugi-no-kyoushitsu-e/