Spoiler for best parts of ep 16:
Mei/May is strong~
Grandpa entrusts a nuclear warhead to Leerin. Ruh rohs.
Honorable mentions:
Felli hospital scene & war of flowers.
Siena joins Platoon XVII.
Nina gets wtfpwned to the stomach. Looked painful.
Felli isn't the only one with the metal bending kick, Siena has it, too!
Bridge conspiracy~ etc.
Edit: Oh forgot this, Ai no Zuellni feat. Mayshen Torinden ED. (Duet)