Jyumonji Ao manga
Before Haruhiro had realized what happened, he was surrounded by darkness. Why was he here? Where was here? Even now, he still didn’t know. Those around him were the same as him, no one remembered anything other than their own names. And when they emerged from the darkness, the world that awaited them seemed like something out of a videogame. In order to survive, Haruhiro forms a party with the others, learns fighting skills, and as a soldier in the reserve force, takes his first steps into the world of Grimgal. What awaits him there, he doesn’t know… This the story of an adventure born from the ashes. Based on a light novel: https://www.mangaupdates.com/series.html?id=116485
From Iskultrip Scans and Manga Abyss: Maria Rose, a boy always mistaken as a girl, is burdened with debt after a strange event, and his sword, "Fake Consuming Inferno" is confiscated. At that time, Katari, a member of his clan, got a hold of some profitable information, but to obtain it, they have to go to an "Underground Raid", but things aren't as easy as it seems... This is the story of love, friendship, and adventure of the beautiful "Cracker", Maria Rose.