Yuu has had a rough life. After losing his parents in a car accident when he was five, he found himself bounced back and forth among relatives, with no place to truly call home. Plagued by a constant feeling of loneliness, all he wants is a little companionship, and he's about to get way more than he bargained for! Her name is Chiyo, and she'll grant Yuu one wish. The only problem: She's a demon of unimaginable power!

A new kind of momcom roleplaying adventure!What would you do if you got transported into a video game...with your mom?? That's the dilemma facing high schooler Masato Oosuki, who has been unwittingly thrown into an RPG world with his doting mother close behind as part of a secret government scheme. As an avid gamer, Masato is eager to show off his skills...but that's hard to do when your mom is an insanely overpowered, dual-wielding, multi-target specialist!

Yuu is now living with his new big sister-an inhuman being he encountered in his uncle's basement! It's the middle of summer, and the two of them are enjoying their days, playing in the garden, splitting watermelons, and taking naps together. Life as a family is simple yet pleasant for these unlikely siblings. Little by little, their bond seems to grow stronger, but Yuu has got an uneasy feeling he just can't shake...

Yuu's bond with his new older sister deepens in the latest volume of this Cthulhu-inspired tale!

Haru has been taken captive by Chiyo, and her only hope of escape lies with Yuu and his desperate pleas on her behalf! His persistence pays off, as Chiyo eventually relents, but when Haru decides to stick around, Chiyo’s none too pleased with her constant presence in the house. With two demonic “big sisters” to take care of him now, Yuu may have bitten off more than he can chew!

Ever since Ryou returned from the hospital, life with Haru, a demon with the face of his late cousin, has been taking its toll on him. While Yuu and Chiyo enjoy their time together as brother and sister, Ryou continues searching for a way to bring his beloved Youko back to the land of the living. But his efforts haven’t gone unnoticed by Haru, who has a plan of her own…

Haru is a beloved mainstay of the local shopping district, a second “big sister” to Yuu, and a friendly (?) acquaintance for Chiyo. But what relation does she have to Yuu’s uncle…and why does Yuu have faint memories of knowing someone just like her? The bonds of blood and affection run deep, and the truth about everyone’s shared past reveals the tragic consequences of forbidden connections…

A new kind of momcom role-playing adventure!It's a brand-new day in the MMMMMORPG, and Mamako is as overpowered as ever, much to Masato's dismay. In an attempt to bridge the gap between their abilities, the party-minus Mamako-accepts a quest to spend a week at the local academy, hoping to obtain items that promise a significant boost to their stats. There, Masato meets the beautiful Cleric Medhi, whom he believes is his one and only ideal heroine. So of course, it isn't long before Mamako ...

A new kind of momcom role-playing adventure!Masato hears rumors of a newly built dungeon where whoever manages to make it through will be granted one wish. Since he’s still well on his journey to try to become stronger than his mother, this could be just the answer to our hero’s prayers. But the loudmouthed Anti-Mom Amante also has her sights on the dungeon’s prize, and she and her goons form the Libere Rebellion will stop at nothing to keep Masato’s party from getting there first. To make...

A momentous debut! When Masato realizes that he and Mamako are flat broke, they set out on an adventure to earn some cash, accompanied by their arrogant Sage, Wise, and sweet Merchant, Porta. Luckily, they find a promising cave for treasure-hunting...but why is Mamako soaking wet?! Whether it’s dungeon-crawling, armor-shopping, or just finding your way around the world map, not even the simplest of RPG activities goes smoothly when your overpowered mom comes along for the ride!

A Momentous Debut!High school gamer Masato Oosuki is stoked to be transported into a video game world and given the chance to show off his chops…but why is his doting, embarrassing mother in the game with him too?! And why is she so good at it?! Welcome to a whole new kind of momcom role-playing adventure based on the original light novel series!

Can’t Get a Moment’s Rest! In the hopes of gaining some power-up items, Masato, Wise, and Porta accept a quest that enrolls them in the MMMMMORPG’s newly established trial school, Gioco Accademia. There, Masato meets the sweet and beautiful Medhi (and her mother), filling him with hope at the prospect of a blossoming high-school romance-until Mamako bursts into his class, at least!