Magnus
"I've brought you a new person to floor 19. I'd like you to show them around." Sam said and I nodded
A girl who appeared around 13 walked out from behind Sam. She looked confused but I didn't have a lot of time to focus on that since I heard a loud thud behind me. I turned and dashed to Alex's side. He had fainted and I tried to get him over to my bed. Sam ran over to help and together we lifted him into my bed and lay him there. I used some healing magic courtesy of my father and made sure he was ok before turning back to the newcomer. She also looked quite shocked but quickly pulled herself together.
"I'm Magnus." I said
"Mina."
"Nice to meet you Mina. Please excuse my boyfriend Alex."
I heard Mina murmur something that sounded like girlfriend but decided to ignore it
"Welcome to Valhalla."
So it's not confusing if a chapter title says Mina it means the person who looks like Alex and if it says Alex it means the person who looks like Mina. That made more sense in my head. Sorry if it's still confusing. Even I'm confused.