just take a peek in the costume shop and found only c3 class costume. Where’re all another the costume go? O_o"
Please don’t tell me they put it into gatcha… 
just take a peek in the costume shop and found only c3 class costume. Where’re all another the costume go? O_o"
Please don’t tell me they put it into gatcha… 
DrRM, please be kind to the others. calling someone needs a doctor is not really nice thing to speak. 
In the end, no one gave a clear answer to OP, not even the staff lol.
Answer: Gacha and Exchange Shop, now you are a happy customer that can waste hundred or thousand of dollars trying to get a costume that might be gone in a few months when the game is put down.
Another feature brought to us by…

IMC decided we should be forced to buy gacha to get them.
Oh and also almost double their costs.
In JTOS they are still in the TP shop for TP, not medals.
Different publisher though.
D: I didn’t saw it like that …
Sorry @maruthontour if my advice ofended your feeling in any way…
[>°♢°]>□ here is a cookie box of appology…
.
.
.
PD: I ate the cookies
Just got an insight. IMC stands for I make crap?
I rather buy a costume for 300 TP instead of buying 11 attempts to MAYBE get a costume i dont want if get any costume at all. 
so do my reply… 
MY COOKIES!! 
ps. I didn’t think it’s offended at all , but Yuri just does for some reason 
that reply from the new IMC staff… 
I don’t want people using "personal attak"even if that didn’t harm someones feelings. That is not recommendable. and @maruthontour, About the Costume problem it has moved to recycle shop and you could purchase it by medal.
Sorry for being disrupted, its a bit late to answer your question.
Thank! , but where can i get this “medal”? 
In the place you dont want anyone to tell you.
Then exchange it in the TP store.
You could acquire medal by recycling TP items at Recycle shop. But be warned though, this medal is not tradable amongst characters. So you have to recycle the item on specific character to acquire medal. Which in this case, the character you want to have costume at.
Is making medals tradeable via storage on the to-do list? Being bound to one character is incredibly inconvenient.
Absolutely good to hear.
Please do. It should have been like this from the beginning.
There’s no reason for items like the medals to not be transferable through your team storage.
How to fix a dying game.
Scam Boxes. :^)
more like short sighted design…
it works, but did not take user experience into account
huehuehue
2017 tos need alot of fixing~