|This article is about a character in Higurashi no Naku Koro ni.|
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Satoko and Satoshi's uncle. When his brother and sister-in-law passed away, he decided to take them in. He has a bullheaded, very bad temper, and spends his days violently assaulting Satoko and Satoshi while drinking and gambling. (Translated from Teppei's profile on the 07th Expansion website.)
Satoko's uncouth uncle who has recently returned from nearby Okinomiya. (From the 2020 anime website)
Teppei has blonde hair and wears a red Hawaiian shirt, He's always seen with a cigarette in his mouth.
After Satoko and Satoshi's parents died, Teppei and his wife became their legal guardians and were very abusive towards them. On the fourth year of Oyashiro-sama's curse, Teppei's wife and Satoshi were the victims, and Teppei fled to Okinomiya.
Teppei makes his first appearance, where he returns to Hinamizawa and becomes Satoko's legal guardian again. He abuses her throughout the story, making Satoko's friends try to rescue her and inform child protective services, however Teppei and Satoko keep denying that any abuse is happening.
Keiichi finally decides to kill Teppei and sends a fake call to his house asking that he come to the police station. Keiichi lies in wait and eventually sees Teppei driving by on a moped, and Keiichi lunges out and kills him with a bat. Keiichi buries his corpse and disposes of the moped in the swamp.
Keiichi returns to school the next day expecting Satoko's problems to be fixed however she says that Teppei came home anyway. Keiichi is convinced he might be going crazy and goes to see Doctor Irie, soon confessing that he killed Teppei. Keiichi is unsure if he really killed Teppei or not, and Irie tells him that Teppei has a tiger tattoo on his back. Keiichi goes to dig up Teppei's corpse but discovers nothing there.
Keiichi becomes convinced that Teppei somehow came back to life and goes to Satoko's house with the intent to kill him again. He discovers Satoko roasting inside of her bathtub, who says Teppei told her to count while taking a bath and not get out until she reaches 10,000.
In the credits, it is said that Teppei has gone missing.
Teppei does not appear however his sprite is shown for the first time when Shion talks about him.
- "作品紹介 — ひぐらしのなく頃に" on the Official 07th Expansion website https://07th-expansion.net/hig_gensaku