u/Ace-eclipsezero

Im sure ive missed something but when Sharron and maric fight but what is the door she opens up here? For context this is the part where Sharron klein and maric fight the people from rose school of thought. Around 347 where they fight wraith Steve.

Do note I am currently only on volume 3(ch 557 to ve exact.) I just went back to this fight and I don't know what the door she opens up is.

P.S I really hope Sharron comes back. She's one of my favorite side character so far