Numerous Zecian Portals provide access to the Seventh Outerlayer, which must be conquered before reaching the inner layers of Ground Zero. As such, it was easy to get there after the Sixth Outerlayer.
Compared to other floors wherein beasts and monsters lie in wait, the Sixth Outerlayer was like a neutral piece of land heralded by the presence of an Overseer. Hence, access to the Seventh Outerlayer felt faster than the previously conquered territories.
Sheila, Theresa Whitelock, Yukina Medusa, and Yulie Rosethorn— all four of them— were advised to wear hooded robes to conceal their identities from other adventurers.
Personally, Albrecht wasn't that particular when it came to their identities, however, he was bound to work with his ex-members, and for the sake of the mission, he opted to hide his identity, and doing so would snowball into his teammates hiding theirs as well.
