My Second Chance: Gifting the Trash Alpha to My Sister

In my previous life, at the mate selection ceremony held by our pack, the Silvermoon pack, I saved a wolf that had suffered a crushing defeat in a territorial war. He turned out to be the Alpha heir of the Sunfire pack, Julian Sterling. To repay me for saving his life, after Julian returned to his pack, he immediately announced that I would be his future Luna. Within a year, I gave birth to a pure-blood Alpha, which was extremely rare in the Sunfire pack. Julian was overjoyed, and he named me his Luna after his father passed on the leadership to him. I not only had a mate who was outwardly loyal to me, but I also held an unparalleled position. As for my sister, Rosalie Ashford, she chose Jacob Blackwell, the courageous Alpha heir of the Stoneridge pack, to be her mate. However, she suffered because of her betrayal, and in the end, she was sent back to the Silvermoon pack. The pack believed that Rosalie had tarnished the glory of the pack, so they banished her. I took pity on her loneliness, so I brought her to the Sunfire pack's territory. However, she grew jealous of me. She killed me with silver-infused poison, and she even threw our pup off a tower, killing him. When I open my eyes again, I have returned to the day of the mate selection ceremony. I watch as Roselia runs without hesitation toward the dying wolf in the woods, Julian. Hence, I know that she is reborn as well. However, she has no idea that while it may be easy to save an Alpha, it's exceedingly difficult to bear his pure-blood descendant. Being the Luna of the Sunfire pack is anything but easy!