Originally Posted by MercyGrim96

Love Prism I think? It was where an older brother was abusing his younger brother and forcing him to be in a relationship because he thought that's what he had to do to be a man. (he was scared in his childhood apparently) It got to the point in the story where the younger brother wanted to end it all so the older brother threatened to kill them both if he ever left, and then the manga ended on that note because the mangaka died.