The Female Head of the Hikaru Family

Traveling through time for weird reasons, cheating the host's system, hmm, it should be interesting. Nitrogen, why myself? As for the promised plug-in, "Ding, since the host does not provide energy, the system is in hibernation." The heroine: "The system is rubbish, ruining my youth, eating my desserts, and consuming my money. What use do you need?" "Hey, blame me, meow?"