As far as i know there are only two usable Serial codes. The others are all expired etc.
The one that you posted and another one which grants you a specific 4* (not that interesting though). I think i read it somewhere on the himeuta Forum.
I only got one Lvl 100 Manyu of each type.
Anyway thanks for sharing friend
- - - Updated - - -
Hell Yeah finally a good Ticket Pull: