Natsume's Book of Friends: The Waking Rock and the Strange Visitor

Finally, the day of Mai's high school graduation has arrived. While Sakuta eagerly waits for his girlfriend, an elementary schooler who looks exactly like her appears before him. Suspicious, and for all the wrong reasons... Meanwhile, Sakuta and Kaede's father suddenly calls, saying that their mother wants to see her daughter. She was hospitalized because Kaede's condition had been too much for her to bear, so what could she possibly want now?

On a warm summer day, a boy heard the sound of bells ringing, as if in celebration, in the mountain near his home. Several years later in that same mountain, the mushishi Ginko stumbles upon a young girl in a mountain with branches and leaves growing out of her body. He later realises that she is the lord of that mountain but finds it strange that a human like her was chosen as the lord. He meets her older brother who has continued to search for her ever since she disappeared while accompanying him on a stormy day. The story is about Ginko’s peculiar journey amidst the occult to unravel the mystery behind the enigmatic girl called Kaya and the mountain that has become her home.

Ruka is a young girl whose parents are separated and whose father works in an aquarium. When two boys, Umi and Sora, who were raised in the sea by dugongs, are brought to the aquarium, Ruka feels drawn to them and begins to realize that she has the same sort of supernatural connection to the ocean that they do. Umi and Sora's special power seems to be connected to strange events that have been occurring more and more frequently, such as the appearance of sea creatures far from their home territory and the disappearance of aquarium animals around the world. However, the exact nature of the boys' power and of the abnormal events is unknown, and Ruka gets drawn into investigating the mystery that surrounds her new friends.

Upon being sent to live with relatives in the countryside due to an illness, an emotionally distant adolescent girl becomes obsessed with an abandoned mansion and infatuated with a girl who lives there - a girl who may or may not be real.