[Blue Archive] "Decagrammaton" Challenge 5 and 6 + Achievement

[@hoangtrieu3438]

in challenge 5 just bring a student that can remove debuff and remove the debuff on the one with the biggest mark, with that the missile attack will hit the boss itself, which is much faster and less malding than T.yuuka, as you can see in the video maki die so you won't get 3*