People are collapsing, start a gentleman simulator

Traveling to the world of Honkai III, Lu Yu activated his simulator.[emulator start][The host, as a gentleman, please guide the heroines to a healthy path in the simulation as much as possible! ]"Miss Kiana Kaslana, I am fascinated by your beauty.""Bishop Teresa, I'll be waiting for you in the church tonight.""Raiden Mei, you don't want your father to go to jail, do you?""Queen Sirin, I'm your dog tonight!"Lu Yu: "The dog system will kill me, what about the gentleman you promised?"(This book is a fan, there are a lot of secondary settings, I don't like to get into it by mistake.)