@zdarkbrz_816 Just like Seitokai Yakuin domo or mostly popular comedy mango so they can just churn out seasonal chapter. Saiki mango tried to play it out as "actually the time freeze is caused by my power" near the end of serialization but came off as 'trying to hard' to me.
To all the people who thought she did it to lose weight. Think about it for a second! YOU WERE RIGHT! She is just lying about her reason. And of cause she is. Do you actually believe she would tell'em the true reason?
I know a lot of manga like to completely ignore the passage of time and throw out annual events like they happen every other day... but exactly how fuckin long is a 3rd year going to be a 3rd year for? It destroys immersion to do this shit.
These schoolkids don't even have lessons. They only rarely have homework. Mostly they just screw around and occasionally eat lunch.