With Katsuragi, beat all missions with highest ranking and in frantic mode.
Fortunately you don’t have to do it with every characters to get the corresponding titles.
It turns out I have done almost all the requirements before I stopped back then, so I just need to complete the the last few remaining ones.
The hardest part I think is to beat the last mission in frantic mode, which is to defeat 5 Snake girls in sequence.
Luckily, I guess I picked the right character; Katsuragi’s triangle attack knocks the opponent down, so I can just keep doing it as soon as the opponent wakes up and they can’t do much. I can even juggle them a bit after they get knocked away to speed things up.
I guess it would be much harder to beat this mission in frantic mode with other characters, seeing how their triangle attacks work in different ways… ^^;
On the other hand, the mission to beat Daidouji senpai isn’t hard to beat in frantic mode; just pick only 1 or 2 girls among the 5 girls to go into frantic mode and ration the 3 full recovery items accordingly lol.
Unlocked Nuigurumi costume (different for each character):
I’m basically left to complete all missions with every characters regardless of ranking and frantic mode (which is gonna take some time…) -.-;
I’m also left with one more image to unlock in gallery mode, probably by completing above task…