Teyvat's Substitute Messengers

What will happen when the substitute messengers come to the continent of Teyvat? As a new author, writing novels is just a spur of the moment. I don't know if I can stick to it. I will try my best to keep writing. This book is supposed to have no heroine. I'm not sure if it will be added later. It may be original or it may be a character from the game. I'll write it first. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.