Natsume's Book of Friends

Season 1, Episode 5: Heart-Colored Ticket

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Natsume comes across an old ticket in Reiko's belongings and decides to go to the abandoned train station to see why she kept it. There, he meets a slow witted spirit named Santo, who was waiting for Reiko the entire time to go Kiriganuma, to see and make up with his friend, Mikuri, but the trip isn't as easy as it first seems...