Tensei shite Oshi no Shibou Flag wo Kaihi shitara Renai Flag ga Tachimashita

It's nice to be reincarnated as the mob "Lily" in the world of my favorite otome game, but.. there are too many death flags for Oshi!! When I was struggling to save Oshi with the knowledge of my previous life, Oshi fell in love with me..!? Rejoice! It was Lily, but Oshi might die if she doesn't unite with the true heroine.. Will Oshi survive safely, and will Lily be able to refuse Oshi's favor?