Originally Posted by Lied

Oh ok, I thought there was some special trick with the locks I had to do.

So we always just get the 1 chest only? And there's no point doing this once we have the new girl at max skill level right? On another note a lot of these event bosses seem to hit really hard but be made of paper, at least compared to the other bosses in the game.

I don't think so, I think the blossoms just count as having Charged Laser and to my knowledge there isn't another unit with that skill, but I could be wrong.