Hiiro no Kakera 2nd Season (2012)

After battling dangerous creatures once existing only in legend,​ Princess Tamaki begins to deal with her uncertain future as the new Tamayori Princess.​ Once she claims her rightful place as the protector of the universe,​ high school will seem like a breeze - but whether she lives to accept that future is another matter altogether.​ Her five guardians - handsome,​ powerful young men of great power and undeniable loyalty - have vowed to sacrifice everything to protect her.​ But are any of them able to deal with a traitor in their midst?​ And how can anyone deal with such important issues while still maintaining a high GPA?​ (Source: Sentai Filmworks)