Unrelated, but what manhwa is the white-haired guy and blonde girl holding hands on the last page of ch108 (couple on the right) from?
As an engineer, Heewon's conclusion about being a "promiscuous guide" is not fully backed up by his experiments. The range and data is insignificant as there is no control variables and only one set of data is procured. He did not fully explored possible tests such as; doing it with another person, interviews with a large sample of espers and guides, heck, he didn't even fully define what constitutes as promiscuous behavior.
In conclusion: I say, he does it again, possibly multiple times to see if there's a correlation. Extending it to using other subjects is also recommended (optional).
I'm looking for a romance manhwa where the girl died in an accident and got reincarnated a few years later after her death, and there's this boy who has been her childhood friend who got traumatized by the event. She decided to dedicate her life helping the guy by working in the guy's company and help him overcome his trauma. Thank you in advance