A notice message has arrived announcing the Guild Battle Event. However, Maple's guild only has a total of 6 members. If any of them drop out, it will become difficult to tackle the event. Therefore, Maple begins searching for new members to increase the guild size... Is it true that an all-in character like Maple is drawn to other all-in characters?! Introducing the twin duo who are all-in on strength! The highly anticipated Volume 5 featuring the laid-back Musou!