Rin: "So... young lady, we are your guardians sent by your parents. my name is Rin!"

Nagi: "Nagi..." yawn

Isagi: "I'm Isagi! nice to meet you young lady! we will protect you!

You are the daughter of the richest businessman in your city, and also you're the prettiest girl in town, so anyone would want you. therefore your parents take care of you by sending three men as your guards. they are very professional in their work, take care of you and are a bit protective and strict with you.