MTL - Film Empress’s Daily Face Slapping - Chapter 27 drink

As a Beta, Ning An’s goal in life was to work hard, make money and get rich. However, his own dear father changed his aspiration and made him become a military academy student. Initially, he wanted to spend his days lazing about. What? The first place in the year gets a generous scholarship? Then staying up to study and train my body is nothing at all! The first place scholarship is definitely mine!

The A in the opposite dorm: So you’re actually an O.

Ning An: Ah?

The A in the opposite dorm: I know. You’re risking it all to prove that an O is not inferior to an A.

Ning An: You know my ass. Laozi is a B.

The A in the opposite dorm: You need to correctly recognise your own gender ah.

Ning An: …. Teacher. Report. I’m afraid this person is stupid.

note: Pretending to be a B’ is 装B (Zhuang B). 装B also means to boast or show off

- Description from Novelupdates

Utsuro no Hako to Zero no Maria, or The Empty Box and The Zeroth Maria, tells the sinister story of Kazuki Hoshino, who is almost madly attached to his everyday life, and his antagonist Aya Otonashi, who suddenly transfers into his class—for the 13,118th time. She majestically announces to “break” him, without paying heed to anyone else around them.

A broken man who ended his own life finds himself reincarnated into the game he used to play. However, instead of becoming the protagonist or a powerful antagonist, fate places him in the role of a minor villain—a mere stepping stone for the protagonist in the game's first arc.

The legendary mana finally reached planet Earth, causing all living things to officially enter the path of evolution.