Alright
I'll translated them all
Alva : "Valentine ball? Research that day... No, nevermind. I would like to repay you for the usual care you have given me at the academy. By the way, what should I prepare for the day...?"
Joseph : "Do you want to go to the ball with me? Hehe... I can't refuse an invitation honestly. You'll be dressed beautifully for the day. Nice? Why of course for me to record. To keep your beauty forever."
Fan Wujiu : "... A ball? Do you want to fight? It's not it, do you want to dance? Inviting me is also a curiosity. I don't mind... Can I join with you?"
Bi'an : "Oh my oh my... Thank you for the wonderful invitation. If I'm going to spend Valentine's Day with you, I'll have to dress appropriately."
Galatea : "I'm sorry. I don't think I'll be able to attend the ball, but I'm honored that you invited me. Come to think of it, did you do well in sculpture class the other day? Hehe, next time I'll tell you..."
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Note :
- Wujiu said Butoukai (ぶとうかい) instead of Budoukai (舞踏会). He say it in full hiragana, which is like a children speaking. I think he's confused because he never going to a ball before
Starting the year off right