📝 Highlights & Appeal Light spoilers
01① A two-part juvenile fantasy: the Tana arc and Yokohama arc
The first 12 episodes (the Tana arc) unfold in a rural summer town, while the latter 14 episodes (the Yokohama arc) jump two years ahead to a wintry Yokohama, telling stories with entirely different casts and moods.
02② The mysterious glowing Material Fairies
Strange incidents caused by the unidentified glowing objects known as Material Fairies, which appear in present-day Japan, run through the entire series.
03③ Withdrawn boys and girls as the protagonists
Both Ayumu in the Tana arc and Kisa in the Yokohama arc are protagonists who struggle to fit in at school, and each is shown slowly changing through their brush with the unexplainable.
04④ The mystery of Wakkun, the strange boy by the river
The true identity of Wakkun, a small boy playing happily alone by the river, is a major mystery from early on, and his bond with Ayumu drives the Tana arc.
05⑤ Miku, the girl who vanished without a trace
Miku, who vanished two years ago and was later found in the forest able to see things others cannot, is deeply tied to the strange happenings in Tana.
06⑥ Opening theme 'Hikari no Silhouette' by CooRie
The opening theme 'Hikari no Silhouette' is performed by CooRie, with lyrics and composition by rino.
07⑦ Ending theme 'Shounen Humming' by Masumi Ito
The ending theme 'Shounen Humming' is performed by Masumi Ito, with lyrics by Aki Hata.
08⑧ Director Tomomi Mochizuki's careful, everyday-life storytelling
Directed by Tomomi Mochizuki with series composition by Kazunori Ito, the show favors quiet, careful attention to its young characters' inner lives over flashy spectacle.
💡 Key Points & Predictions Some spoilers
In the Tana arc, the biggest thing to watch is how the truth of Wakkun and the Material Fairies — and the real reason behind Miku's disappearance — comes to light. In the Yokohama arc, it's worth watching how the events of the Tana arc connect to Kisa's story two years later.
🧾 Story So Far Contains spoilers
One summer, Ayumu Aizawa visits the small town of Tana, two hours from Tokyo, to spend time with the father he lives apart from. Shy and overwhelmed by the town's overly familiar residents, he wanders around on his mountain bike and meets a small boy named Wakkun playing alone by the riverside. Meanwhile, the town's animals begin reacting strangely to something amiss, and unsettling events pile up around Miku, who vanished mysteriously two years earlier and now seems able to perceive things invisible to others.
✅ Recommended Viewing Points
A classic juvenile fantasy that carefully depicts everyday wonder, missed connections, and the growth of its young characters — recommended for those who prefer quiet lingering atmosphere over flashy spectacle.
👀 Trivia & Fun Facts
💫 Unresolved Foreshadowing Contains spoilers
- Wakkun's true identity and his connection to the Material Fairies is the biggest mystery running through the Tana arc.
- The real reason Miku vanished two years ago has yet to be revealed.
- How the events of the Tana arc connect to the Yokohama arc two years later is also worth watching closely.
💌 Predicted Viral Quotes for Next Season
"I can see things that aren't supposed to be seen." — Miku quietly revealing the secret she carries.
"You can't stay a boy forever." — a line symbolizing the show's theme of growing up.