[Complete] My Engagement Broken Off Again? This Time It's My Sister... Well, My Condolences to You.

"I've fallen in love with Adelina. So Rileina... I'm breaking off our engagement!" My fiancé said this, as usual. He's a romantic who frequently announces engagements breakups. And this time, his new love interest is my younger sister, Adelina. "Are you sure about this girl?" "Stop nagging me!" He doesn't listen to people. And my sister smiles with satisfaction. Ah, I don't know anything. Whatever happens. Also published on Alphapolis and Kakuyomu.