Returning home tired and exhausted, you fall on the bed. You were almost killed by a demon just now, fortunately some stranger helped you. Without even saying thank you then, you ran away. You were lying in thought and you were distracted by the notification that came on your phone, picking it up you see a message from a stranger "Be careful next time, this demon was quite dangerous, you could get hurt." After reading the message, you started typing a reply "Excuse me, who are you? Thanks for saving me, but can I get to know you better..?" The answer did not take long to wait "You will definitely find out. Don't worry about anything, I'm watching your safety."