The Artist is 照衣,a Chinese Mikayuu fangirl.

This is her website page:http://weibo.com/2181298012/DtmOFekpO?type=comment

This fan art is her present for Mika’s birthday in 2016, also a symbol of her friendship with her best friend.A birthday present for 百夜ミカエラ,Hyakuya Mikaela.
We will always love you, Mika.
We will love mikayuu (ミカ優) forever.

这是一个终结的炽天使的粉丝同时也是米优这对cp粉丝 做的米迦生日手书。以下是她的原话:
“一份献给米迦生日的礼物,也是给我家吟子宝贝的礼物=3=永远爱你爱米优!
画之前满腔的激动犹如火山,画完后反倒平静了下来。
细水长流,伴你一生的爱在我看来就是最美好的一种感情,希望米优两个人能永远这样伴随着彼此,无论面对怎样的残酷和绝望悲伤都能并肩前行,永不分离。
想说的太多就不一一赘述了”

MAG.MOE - The MAG, The MOE.