山神様とおきにいり

A completely ordinary young man named Souichirou works as a repairman. One day, while lost in the mountains, he is saved by a mysterious man. This man, who kisses Souichirou’s hand without warning and even flies through the air, possesses otherworldly powers. To repay him for his help, Souichirou ventures back into the mountains. However, after meeting the man several times, he eventually finds that the man has lost his memory...? (Source: Shinshokan, translated) Note: Includes one extra chapter.