Greenfingers no Hakoniwa

Greenfingers no Hakoniwa summary:

A story about an invisible botanist and a part-time university student, who unravels the thoughts spun by mysterious plants and people.
The story of an invisible botanist and a part-time university student, and the strange plants that surround them, begins!
Asahi is a university student who is introduced to a new part-time job when a record store closes.
The idea is to help a "slightly unusual botanist" who lives in a large mansion in the mountains behind the university.
However, on his way to the mansion, he somehow gets lost in the mountains on a single road.
In fact, Asahi had a strange experience in his childhood as well.......