I SEEN THIS ONCE the houle first season and christmas spescial i dont knowe what shes singing but i love it and never lauged so hard ever love hina the only manga i like eaven toughe its for teens
the song you are talking about is "egao no mirai e" where naru works a a singer. I found out that the song "andante"" is from the anime da capo but is sung by a differen person. but you are right, this song is great either way
