Book 4

In the hopes of gaining some power-up items, Masato's party-minus
Mamako-accept a quest that enrolls them in the MMMMMORG's only school, Gioco
Accademia. There, Masato meets the sweet and beautiful Cleric Medhi (and her
mother). Masato is suddenly filled with hope at the prospect of a high-school
romance blooming-until Mamako shows up out of nowhere, at least!

Book 5

It's time for the World Matriarchal Arts Tournament, and with Mamako as a
contender, the competition is fierce! For some reason, her son Masato is quite
popular among all the different moms participating... Will our protagonist
finally get the harem he's been hoping for?!

Book 8

The mastermind controlling the Libere Rebellion's Four Heavenly Kings
appears, and that spells trouble for Masato's party! This time, it's not just
Masato's mom who will come to their aid...but Wise's and Medhi's moms, too?!
Plus, the identity of the fourth Heavenly King is finally revealed, and it's
definitely not the person Masato was expecting...

Book 9

Merry Mom-mas! The holiday season brings a special Yuletide event to
strengthen the bonds between parents and children...specifically, between Hahako
and the Libere Rebellion's Heavenly Kings! The time is ripe for making precious
family memories and bringing smiles to children's faces. But when the situation
takes a turn for the worse, will Santa Mamako come dashing through the snow to
save the day?!