Original
Natsuhiboshi naze akai?
Yuube kanashii yume wo mita
Naite [bad word] Akai me yo

Natsuhiboshi naze mayou
Kieta warashi wo [bad word] Dakara kanashii yume wo [bad word] 
English
Summer star,why are you red?
Last night I had a sad dream.
Crying as I talked.
Oh, red eyes.

Summer star, why are you lost?
You are searching for we who disappeared.
That's why I have sad dreams.