wincest and depress This is an IF timeline where MC prevent his sister start her own harem and eventually marry her in the future. Unlike ori timeline, this IF timeline is more serious, darker and sweeter (mc x sister) than the original timeline. Authur added in some new additonal lore and settings, really intersting to read this after knowing the ori timeline. The pacing is also faster than ori since its a spin off but it make the story more enjoyable. If you haven't read the ori timeline novel/manga, then this probably just an average isekai but if you read the manga/novel then most likely youwill love this spin off.