What Flows
- Episode aired Jun 6, 2017
- 24m
After a flood occurs on Four Mask Hill during Natsume's summer school session, a mask randomly appearing in the school worries Natsume.After a flood occurs on Four Mask Hill during Natsume's summer school session, a mask randomly appearing in the school worries Natsume.After a flood occurs on Four Mask Hill during Natsume's summer school session, a mask randomly appearing in the school worries Natsume.