Bleig is the real name of Xigbar. Of course it was a mistranslation from languages, but that was his name in the english version.
Kimi wa ne tashika ni ano toki watashi no soba ni ita
Itsudatte itsudatte itsudatte
Sugu yoko de waratteita
Nakushitemo torimodosu kimi wo
I will never leave you