The Decider of the Multiverse

The heroine is a judge of time and space. No matter which anime world she enters, the powers granted by the Transmigration God to cannon-fodder girls, transmigrated supporting female characters, or illegal transmigrators have no effect on her, no matter how powerful they are.

The anime featured in this story include Saint Seiya, Steel God, The Prince of Tennis, Fushigi Yuugi, and Cardcaptor Sakura.