Comprehensive Comic: 72 Hours into the Game, Save Matou Sakura

My name is Lin Yuan, a senior anime nerd who was still making up episodes before his sudden death. Traveling to this comprehensive comic world that incorporates dozens of anime, you awaken the dimensional rescue system - detect tragic nodes, rewrite regrets, and you can get points to exchange for everything. The first prompt from the system made me dumbfounded: ? S-level regret node detected: Matou Sakura, who will be transformed by the Marking Insect in 72 hours... To go or not to go? "Watching Sakura being tortured? I can't do it." But just when I was approaching Matou's house in the dark - under the moonlight, a blond girl wearing silver armor pointed directly at me with the invisible sword in her hand. "Stop. Who are you?" Saber? ! The Fourth Holy Grail War has begun? ! Previews of subsequent world lines: Erza in Paradise Tower, Butterfly Ninja in Infinity City, Mikasa before the Earth Cry, Misaka sisters... The heroines from all over the world look at me more and more strangely: "Lin Yuan, how many more women do you want to accept?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.