I Survive by Absorbing Negative Energy, Yet I Want Them to Be Happy Forever

The overall BanG Dream! setting: "I have to absorb the girls' negative energy to survive? And even return to my original world?" Negative energy? Easy. "Saki, your pay will be lower next month." "Soyo, Saki says all you ever think about is yourself." "Aya, stop obsessively searching for yourself online." Perhaps Lin Hai once thought that way, but after making one wonderful memory after another with the girls, he grew greedy and wanted to string all those beautiful moments together into a lifetime. "I want them to be happy forever, never troubled or in tears." "I miss the warmth of my original world, but I don't want to lose this world or the memories I've made with everyone here." "So, System, help me fight against the will of the world."