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1st Year
The 1st Year Arc of the series contains 14 volumes, with 3 short story collections.

The official logo of the light novel series.
Yōkoso Jitsuryoku Shijō Shugi no Kyōshitsu e (ようこそ実力至上主義の教室へ, Literally meaning "Welcome to the Classroom of the Supreme Ability Doctrine"), abbreviated as Yō-Jitsu (よう実) or more commonly, its alternative romanization, You-Zitsu, is a light novel series written by Shōgo Kinugasa and illustrated by Tomoseshunsaku.

The series has been published under Media Factory's MF Bunko J imprint since 2015; as of September 2019, fourteen volumes (including three short story collections) have been released.

2nd Year

Official logo for the 2nd Year Arc.
On October 25, 2019, it is announced that the series will begin its 2nd Year Arc and will be renamed as Yōkoso Jitsuryoku Shijō Shugi no Kyōshitsu e Ni-Nensei-Hen (ようこそ実力至上主義の教室へ 2年生編, Literally meaning "Welcome to the Classroom of the Supreme Ability Doctrine, 2nd Year"). The first volume, 2nd Year Volume 1, will be released on January 24, 2020.

Vol 2

"I definitely won't let you get expelled."

Kiyotaka Ayanokōji has managed to avoid the ploy by the new first-years. However,

"Ayanokōji got full marks which shouldn’t be possible. It’s as if I’m watching a magic trick."

His perfect test scores in mathematics are making waves, spreading out like ripples in water.

Meanwhile, Suzune Horikita is requesting to join the Student Council after receiving the test scores. Nagumo is happily accepting her, but he seems to have some other thoughts on that matter however...

While Ayanokōji is getting closer to Karuizawa bit by bit and things begin to change, another school-wide exam is announced to start by summer: The deserted island survival exam.

It will be a group battle and the top 3 groups will receive a huge reward, while the lower ones will receive an expulsion penalty.

Before they reach land, during the prelude to the coming war, they are permitted to create their own groups. A battle to recruit potential personnel is beginning!

Source: Youzit-su Wiki in English....