how rare is win 6 slots legendary weapon from light / dark box in story

[DRAGONxNOGARD]

if fail how i farm naryu silver and where i buy more of those boxes

[MantisxD]

Mushin tower is ok for naryu silver( or coins dont remeber). As for where to buy one place is grand harvest square near wheel which is near that foul mouth granny :D

[Nayita]

I didnt know it was something special to have 6 slots, but i am at stage 10 already. So no idea when i got those all 6 slots lol 

[RavTH]

welcome the good old days

 

[Mastadrex]

When I opened the light box that I got from the quest I ended up getting 6 slots on it right off the bat.