Yuanshuaimen Tongshi Nao Lihun

The Marshal, Lu Li, started a new intergalactic era alongside his lover and military adviser, Xie Jianwei. The entire universe envied their steadfast love. It was only until one day, the Marshal had his personalities split. His personalities were unable to recall anything, and all wanted to monopolise Xie Jianwei. They were jealous to the point of wanted to get rid of "themselves". In order to cure his lover, Xie Jianwei entered each and every one of Lu Li's dreams to fuse his personalities together, which had been split earlier on. He didn't expect that in all the dreams, he would be engaging in a fanciful love with Lu Li...(Source: Kuaikan, translated)