So far pretty good, the gender swap has not really negatively impacted the story. Split personality give some potential as well only downside was the bad nicknames assigned in ch.6.
Turn your brain off, 3 days from exam decides to go to secret realm ok, learns about his team mates ability then instantly sets off to the secret realm. Once in the realm apparently Mc had enough time to create blueprints to a fully functional robot for his teammate to produce like when did he have time to do that he just learn of his teammates ability. He has been in that world for 4 days, or 40 days of physical training.