Happiness? (Yui's sister)(Diabolik Lovers)

(Edited as a gift for a friend and brought it back to existence 💜) (EMBRACE THE CRINGE) [NOW WITH COMMENTARY]

WARNING: Yui is a bitch

In the disappearance of her parents and left on her own at a very young age has made a negative impact in Kiyo's life. Orphaned and alone in Japan when a priest, Seiji, was saddened by her situation and made a decision to adopt the poor girl. Kiyo now lives in a church with Seiji and his daughter and now-sister Yui.

However, Kiyo's grief and sorrow left her unresponsive and burdened; Seiji and the church paid more attention to her well-being even when it was unnecessary. This left Yui with far less attention and eventually became jealous to the point where she is willing to hurt her sister.

Then what if their father sends them both somewhere? Will Kiyo find happiness again? or will she be doomed of endless hurt?