My sister can’t be Ying Li Li

In the fantasy novel 'My sister can't be Ying Li Li,' the protagonist travels through time and becomes Eiriri's younger brother, gaining the extraordinary ability of the God of Strategy. The story unfolds with the protagonist using unconventional and wild strategies to acquire talents from individuals he captures, spanning various fields like novels, comics, and music. The main focus remains on helping his sister break free from the fate of being a 'golden retriever loser,' even if it means taking on the persona of a scumbag. As the scumbag's journey commences, the narrative delves into a world of endless possibilities and unforeseen outcomes.