Finally beat helmut after i lost my mobile account the last two floors were driving me crazy.

My Party:
Eckhart | Me | Lanaville
Debra | Yeka | Daniel

They've been solid so far but alot of my other units have lagged behind, i wanna replace eckart with shiou but i havent been able to get a single katana from my junk, are they just rare or can they jsut not appear yet

also am out of the tutorial our...?