How the red texts are shown in the last panel reminds me of Kill la Kill though. A reference, also?
I'm pretty sure that "Kill la Kill" is already using that as a reference to some old-school manga or anime, but I couldn't seem to find any confirmation for that.
Commander!Commander-sama...Supposing if would be alright with you, we'd be honored if you'd receive our offerings...Good grief, there's no helping you, dear chap!Eat this!
lit. "Take this!"Ooof!Ooof!Ooof...That you wanted chocolate from me so dearly!53cm Quintuple Torpedo MountI-I wonder if they've come to hate me...Chocolate CakeUM... THE-SO-CALLED-CHOCOLATE-THING!GIVE!I'VE-GIVEN-IT-TO-YOU-ALREADY! TAKE-RESPONSIBILITY-AND-EAT-IT!