Kokou No Hito
Complete | Sakamoto Shinichi, nitta jiro | 2000 released
This manga starts getting REAL during the first snow mountain arc. It was gripping and stressful in the way a good psychological manga should be. That being said, Mori really should have died at the end. He had a choice between the mountain and his wife & child and he chose the mountain. The mountain should have took him.
Bouzu to Kumo