Board Thread:Magnus Chase & the Gods of Asgard/@comment-27084939-20151021023932/@comment-1515612-20151021030230

You're not wrong. The whole thing gives off feelings of Percy Jackson series because it does mimic it. Also, most tropes do have the main character, two supporting characters because nice things come in threes. Typically one of those is a female love interest. It's just the way it goes.