The person who’d been whispering her hate about Medhimama was actually Medhi herself. Medhi was loyally doing what her mother told her to, but was secretly feeling extremely stressed and angry. When Masato and his mom find out about this, they decide they want to help her. Meanwhile, the school holds a festival, and parents are allowed to participate. The group decides to open a small café where Mamako will cook. Medhimama opens a café of her own, and insists on competing with Mamako to see who can sell more. Mamako reluctantly agrees, but…
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.
