Shirabe

以降いこう

Common Noun Adverb
English jmdict
1
noun (common) (futsuumeishi)adverb (fukushi) on and after;from ... onward;since
それ以降彼は辛い一生を送った。
He led a hard life after that.
Other forms 已降 【いこう】 (rarely used kanji form)