True Happiness (Xiao x Lumine or Xiaolumi)
Lumine meets a man who is her source of happiness. She feels the need to try to keep spending time with him because it has been so long since she felt anything like that. Ever since she lost her brother, she has never been the same. (Btw this is fanfiction lol) (COVER NOT MINE. Credit to FaQ on Zerochan)