CHAPTER-2
The astral spirit which Delta killed was wino's mother who was reincarnated in Delta's world. She saw that Risellia was wino's lover (context:-Astral spirits can see the past life of a spirit) and she looked like she was in trouble so she was trying to help her but was mistaken for trying to hurt her and Delta killed wino's mother with his own hands. Fate is such a cruel thing.
FATE OF REGRETS
Killed by others died in regret and vain Miyaki wino's sister she had one single dream of becoming his real sister and guess what...She was reincarnated as Seista.
FATE OF TRUE LOVE
Shina a goddess incarnate who fell in love with the boy hated by the whole world and died with one great regret of not being able to spend her life with the man she loved this strong emotion of love from a pure soul melted the heart of a god and it lead to her reincarnation as Reisellia
MAYBE that Delta and Wino are related....
-To be continued