[Machine Translation] After returning from the Battle of Flesberg, Yu and his classmates decided to hold a school festival. While the class is in high spirits, Lisa seems somewhat depressed. Apparently, she is depressed that her parents are making her choose a fiance. Yuu plays the role of her boyfriend in front of Lisa's parents. But then information comes in about the disappearance of "green" Yggdrasil, the dragon that holds the key to Yuu's memories...? ( ... I won't stop you. Even if I stop you, you're still going, right? ) ( Yes, of course. ( Of course. Even if it's only for today, I'm still your lover. ) In this sparkling momentary festival, only the tips of our joined fingers connect our two wavering hearts... The fifth installment of the Unlimited School Battle Action!