With Shirase’s help, Mamako is allowed to attend the school as well. Just like Medhimama, she becomes an observer in Masato’s class. When Medhimama finds out that her magic doesn’t work on Mamako, she decides that Mamako is her new rival.
Just when Masato thought that a random survey conducted in school was over, he got involved in a secret Government scheme. As he was carried along with the flow, he ended up in a Game world! As if that wasn't enough, shockingly, his mother was there as well! It was a little different from a typical transported to another world setting, but after some bickering,
"Mom wants go on an adventure together with Maa-kun. Can mom become Maa-kun's companion?"
With that, Masato and Mamako began their adventure as a mother and son pair. They met Porta, a cute traveling merchant, and Wise, a regrettable philosopher. Along with their new party members, Masato and co. start on their journey.
