Responses

My only guess is "Hikaru" will die and yoshiki will have to mourn for two Hikaru. Yoshiki's mental health would crumble and he would need to pick: Move on from both Hikarus and live or keep suffering.
Because yoshiki is a sunflower and Hikaru is his only light (sun). Sunflower will always look at the sun and will die without the sun.
My people, embrace yourself for sad or bitter ending. Story like this won't get happy ending
╥﹏╥