"You want to celebrate my birthday with the family? Please don't say such selfish things."

What is it, Father, Mother? I am a busy person, you know. If you have something to tell me, please say it quickly. What kind of way is that to speak to your parents? Even so... I really am quite occupied. Oh, I must prepare my luggage soon. Where are you going? Ah, my friend is celebrating my birthday next week for me. So if you have something to discuss, please do so before I depart. You haven't heard? That's strange... My birthday party has been prepared with great enthusiasm since half a year ago, hasn't it? I also received Father's permission to go on a month-long trip starting before my birthday. Hmm... So you're saying that since the family will celebrate for me, I should cancel the party my friend is throwing right now? Father, Mother. Please don't say such selfish things. The setting is vague. Posted on Alphapolis.