'Tenshi.'
Lonley angel would be "Ejiru-Sabishii"
Yami no tenshi means angel of darkness.
Maybe "tenshi no ai"
angel = tenshi justice = seiigida tenshi no seiigida? Maybe?
死の天使 (shi no tenshi) would mean "Angel of Death" in Japanese.
天使の血 Tenshi no chi
小さい天使 (chiisai tenshi)
正義の天使 Seigi no tenshi
ちび天使 (chibi tenshi) is one way of saying "small angel."
You may say 'chi no tenshi,' written: 血の天使
天使 : Tenshi tenshi
it is 天使の心 it is the same in chinese, but without の (天使心)