The lyrics of a song are probably: It's a nice day today, and I'm in a bad mood. What's the name of this song?

Lyrics: Today the weather is fine, but I'm in a bit of a bad mood.

I want to talk to anyone casually, and I don't know what to say.

It seems that I haven't been home for a long time and have been nagged by my parents.

They get older every day, but I'm always as busy as a bee.

The names in the phone book have been crossed out one by one, and there are fewer and fewer friends to talk to.

Just follow the world in a hurry.

I just want to be simple, plain and lonely. What's the harm?

I always thought I was so lonely that I forgot that you were by my side.

Is it too late to know how to love you?

What about the person I loved now?

It was painful at first, but now it doesn't seem to matter.

The weather is very good today. I just want to hug you tightly.

I decided to let you know that I want nothing but you.

Let bygones be bygones, don't bother yourself.

I swear I will only be nice to you from now on.