History's Strongest Tour Guide

In the parallel world called Blue Sphere, there were rumors of a certain service store that specializes in unimaginable tours.
--[The Mysterious Adventure Guide]--
Such a name was already famous across the world. Yet it had no fixed location.
However, every trip was so jaw-dropping that even the top wealthy people in society wanted to squeeze in for the trip.
One by one, the mysteries of the Blue Sphere were unearthed.
The world was going crazy, and many regarded the owner of this shop as a legend!
.
Glen Chu woke up to find himself in a strange world with an adventure system and an additional sister. 
What? Do you think being a tour guide is boring?
Heh. 
Glen Chu rolled up his sleeves and went to work. 
With the system by his side, he would be history's strongest Tour Guide!

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