Cuteworld.net

When Saito woke up he been told that he slept for 3 days and Louise have been taking care of him. When he tried to take her for that, he been scoled somehow. Louise have a really bad temper even if she looks cute. In class, Saito learned why Louise is being call “Zero Louise” and made fun of her… poor him, he been punished severly (No meal for each “zero” he said). As he was starving, he met Siesta who bring him to the kitchen where he met other commoners. They were all fan of him since he stand to a noble and won. He also learned that Louise spend a lot of money buying some expensive medecine to heal him. While returning to Louise’s room, he been caught by Kirche’s familiar. He was brought to Kirche’s room who was in sexy underwear. She confessed her love and jump on him. In the meantime, they been interrupted by all Kirche’s fans. Then Louise appeared in the door, telling him to come back. He wanted to stay, but changed his mind when Louise said that if he stay, he’ll have ten guys who will be after him (Kirche’s fans/lovers since she is a men-hunter). Back to the room, Louise said he could date anyone but her since they hate each other (something about their familly).
The next day, they went to town to buy a sword for Saito. She bought some cheap sword because she couldn’t afford more. Saito understood it was because she bought those expensive medicine to heal him. Kirche followed them and bought a more expenvice gold-sword for him. In Louise’s room the girls were arguing and asked Saito to choose a sword. He noticed that that Louise’s cheap sword was speaking and said without thinking that he’ll take that one. The sword is called Derfflinger and said that Saito woke him from his long sleep.

I guess even if the sword look cheap, it’s a very powerful sword and Saito was one of the few person who could woke him. I hope we’ll see soon if my guess is right!