Ep. 8: Natsume and friends visit a lake inn rumored to house a mermaid while doing homework.
Aired on February 24, 2009

Natsume, Kitamoto, and Nishimura travel to a remote old inn to dedicate their time to completing school assignments. The establishment is situated near a lake that is widely believed to be the habitat of a mermaid. The group intends to use the quiet environment of the inn to focus on their studies, unaware or perhaps indifferent to the local legends surrounding the nearby waters. This excursion combines academic responsibilities with the atmospheric setting of a traditional lodging known for its mysterious aquatic folklore.
Episodes
- Ep. 4 · Natsume cares for a hatching rare baby spirit Tatsumi while facing a dangerous spirit.
- Ep. 5 · Natsume seeks the torn Book of Friends page binding a spirit enslaved by Reiko fifty years ago.
- Ep. 6 · Taki Tooru's arrival brings mysterious crop circles and a snack-seeking Youkai to Natsume's life.
- Ep. 7 · Natsume loses sight after being poisoned by the spirit pursuing Taki in the cave
- Ep. 8 · Natsume and friends visit a lake inn rumored to house a mermaid while doing homework.
- Ep. 9 · Natsume and Nyanko Sensei attempt to return a mysterious cherry blossom picture to its owner, Miya.
- Ep. 10 · Strange occurrences at Natsume's home involve destroyed plants and a wandering Youkai
- Ep. 11 · Natsume encounters a youkai and is invited to the Assembly of Conjurers by Natori and Hiiragi.
- Ep. 12 · Natsume frees a boy sealed in a coffin and confronts the youkai stalking him with Nyanko-sensei's aid.