HP: What kind of shout was that?

A young video game lover is reincarnated in the world of Harry Potter with a Skyrim spellcasting system, all while believing he's still playing the game in his apartment. Fair warning: I'm a total newbie at writing fanfiction, so please bear with me. This chapter was originally written in my native language, and since my English average at best, I used AI to help translate and check for grammar mistakes.