The song tittle is: "ignore when meets".
Here's the lyrics' translation:
Remember the time when they were on the same way.
The boy silently followed the girl and sang some love songs.
The girl was too innocent to make the acquaintance.
The road in front of her house is full of Jasmine flowers' smell and fire-flies.
Is she sleeping ?
He is wandering in the middle of the night.
The white-eye birds are still awaken.
He wrote a letter and gave it to her 2 days after that.
But she ignored it.
Remember the time when we were young.
Despite meeting regularly, we still kept silent to each other.
Not many people got a chance to be with their first love.
Now I'm crying when standing on the river bank.
If it wasn't meant to be, then we shoud just ignore each other every time we meet.
(sorry if my English is a little hard to understand :D)