Honoo no Labyrinth

In tone, atmosphere, art, type of humour and general zaniness, "Photon" and "Labyrinth of Flames" strongly resemble each other. While the former has a more developed story (due to longer runtime) than the latter, they both feature well-paced action sequences and a limited yet interesting array of strongly individual and more often than not ridiculous and obsessed characters, all the while being really fun rides through somewhat outrageous comedic situations with a dint of romance... and loads of proper fanservice! "Photon" and "Labyrinth of Flames" don't take themselves seriously at all: you're in for pure, wacky comedy provided by over-the-top behaviours, where the story is put on the back burner and is essentially an excuse for playing heavily and tastefully with clichés (albeit more subtly in "Photon"). read more 

Both are hilarious and have the same non-sense humor.