Heita Mamemomi
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Heita Mamemomi was a journalist who worked under Sōseki Natsume.

Reporter Mamemomi's Justice Edit

Yujin Natsume newspaper

Mamemoni's newspaper photo.

Heita Mamemomi had been covering the story regarding the murder of John Watson by Jezail Brett, and was outraged at the government’s choice in handling the murderous woman, when he started questioning why the government would be sending her away in the first place, rather than try them in their courts as they had the right to do so. After much investigation and speculation, he came to the conclusion that some sort of shady deal was going on between members of the British and Japanese governments. Determined to bring justice through his reporting of the scandal, he dug deeper, and uncovered an assassination plot involving two exchange students, as well as ties between one of them and Yūjin Mikotoba.

Interviewing a Professor Edit

Main Article: The Adventure of the Blossoming Attorney

After Sōseki Natsume's success of his book, I Am a Cat, he found himself a reporter by the name of Heita Mamemomi when he visited Yuumei Acadamy. Mamemomi interviewed him and Yūjin Mikotoba. Natsume strongly requested him to write an article about a very potent poison being researched at Yūjin's lab. When Mamemomi was cleaning out his fountain he decided to fill it with some of the poison to sneak it out.

Interviewing a murderer Edit

Brett and Mamemomi

Being called a monkey.

Jezail Brett, one of the subjects of his investigation, continued research and was due to be extradited to Shanghai soon, so Mamemomi saw this as his chance to interview her. He did so at a beachhouse but he couldn't much out of her, she just kept insulting him, calling him a "monkey" who didn't know the difference between peeking and journalism. This made him so angry he slipped the poison he had in his pen into Brett's drink.

Mamemomi's picture

Where have we seen that crack before?

Afterwards, a girl named Haori Murasame confronted Brett demanding back the poison she stole before anyone notices it's missing. Heita Mamemomi, who was hiding behind the beach house they were in, realized that the poison has some pretty specific side effects, which no one would use it willy-nilly unless they were outside of the lab. So he pushed between the reeds the house was made of and stabbed Jezail Brett with a knife hoping that would kill her before the poison kicks in. Haori Murasame was arrested for the murder of Brett because they were the only ones in the hut.

Murasame's Trial Edit

Originally, Heita Mamemomi only appeared when Sōseki Natsume posed, like an animation gag. But once "Ryūtarō Naruhodō" revealed that the photo taken for the trial was taken with the same cracked camera as the newspaper regarding the meeting at Yuumei Acadamy, the court realized Mamemomi was also a witness. What finally exposed him was the poison in his ink that he stole, as a tool was present that could be used to confirm the presence of the poison. When defeated, Heita Mamemomi swings his camera around really fast until Murasame and Susato flip him over with a self-titled Ryūtarō Toss. He then lamented over the events of the past nine months, as he accepted his guilt, and gave details on some of his discoveries regarding the government’s handling of Jezail Brett. He was then taken away by the bailiff.

Afterwards, Mamemomi overheard the discussion between Susato and Yūjin regarding him faking an illness to make her return to Japan. He broke free of the men detaining him, and rushed over to the Mikotoba family, saying he knew the truth about the the link between the "exhange student" and Yūjin. But before he elaborate further, the judge of the trial, Seishirou Jigoku, incapacitated him with a self-titled Jigoku Toss. The bailiff then takes Mamemoni away.

Personality Edit

Heita Mamemomi loves his job as a reporter and takes it very seriously. He's always looking for new things to be his next big scoop. He follows his own philosophy called "Mamemomisn" and often explains about what it applies to. Mamemomi tries to bring justice to Japan but in a bad way.


  • Mamemomi might be from "memo" or "memoru" (Japanese-English fusion verb for "to write a memo"). Throughout the trial he uses the term "mememomi memo."
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