Popular Streamer “Mogami Ai” Stabbed to Death During Live Stream: Fiancé Reveals Shocking Details

On March 11, Airi Sato (22), who was active as a streamer under the name “Mogami Ai,” was tragically stabbed to death during a live stream in Takadanobaba, Shinjuku, Tokyo. On March 16, a man claiming to be Sato’s fiancé took to X (formerly Twitter) to reveal his identity and share shocking details about the events leading up to the incident.
The man, who identified himself as Daiken Yui (born April 22, 1992), CEO of ORNIS Corporation, addressed the reported debt dispute of over 2.5 million yen between Sato and suspect Kenichi Takano (42), as well as their high-rise apartment lifestyle and overseas travels.
In a post titled “Timeline of Mogami Ai (Airi Sato) and Suspect Takano,” Yui attached three documents. According to the post, Sato and Takano met through a streaming platform in December 2021. Between September and November 2022, Takano transferred 2.5 million yen to Sato. By December 2022, Takano began frequenting the restaurant where Sato worked, expressing romantic interest and repeatedly pressuring her to date him.
In January 2023, Sato reportedly suspended her streaming activities due to Takano’s persistent harassment. In July 2023, Yui met Sato through a voice chat app, and they began dating. By August, they moved in together, got engaged, and Yui started lending Sato tens of thousands of yen. However, Yui later discovered intimate messages and financial disputes between Sato and Takano on LINE. Sato explained it as “just a debt issue with a viewer” and deleted the messages.
In October 2023, a suspicious X account named “ぢさつ” followed Yui, with a profile stating, “A streamer borrowed money and disappeared.” When Yui confronted Sato, she admitted to an 800,000 yen debt from the past. By November, it became clear that Sato had not repaid Yui and had no assets, prompting Yui to initiate the process of moving out of their high-rise apartment.
In January 2024, Yui borrowed 2 million yen from a consumer finance company. Sato, who claimed she couldn’t work outside due to mental health issues, promised to repay the debt through streaming. However, she faced harassment and couldn’t stream, leading Yui to suggest they pretend to break up and negotiate with Takano.
A three-way discussion between Takano, Sato, and Yui took place, but the details of the 2.5 million yen debt remained unclear. Yui demanded transparency, but Takano refused to provide details and requested a lawyer. The court ruled in Takano’s favor by default.
Yui recalled, “Sato was shaken by the court ruling and the judgment. I asked for a written agreement, but both Takano and Sato repeatedly mentioned a ‘non-disclosure agreement,’ which made me suspicious. I told Sato she only had two options: pay or face the consequences.”
“Sato insisted on paying and asked Takano to stop interfering with her streaming. We verbally agreed to the terms, and after informing Takano that I would no longer intervene, I questioned Sato about the suspicious points, but she assured me there was nothing to worry about,” Yui added.
For the full story, visit the source:
https://www.zakzak.co.jp/article/20250316-I63CQY6RZRF5HGVDKXNIGTLUG4/2/
Yui (Mogami Ai’s fiancé):
https://twitter.com/mogami1024yui
https://pbs.twimg.com/media/GmJ2HJmbUAAV22-?format=jpg&name=large
https://pbs.twimg.com/media/GmJ2HJcaYAAWBD_?format=jpg&name=large
https://pbs.twimg.com/media/GmJ2HJcaMAAxSMY?format=jpg&name=large
Source: Female Streamer’s Fiancé Reveals Shocking Details About Debt Dispute, High-Rise Living, and Overseas Trips [Negi Udon★]
https://hayabusa9.5ch.net/test/read.cgi/mnewsplus/1742188615/
Comments from Netizens:
2: Watching Peace-kun at Omiya Park on YouTube is more fun than begging streams.
3: Congratulations on being Japan’s #1 sketchy person.
4: Too long, summarize in three lines.
5: Dead men tell no tales, so who knows what to believe.
6: A shady guy has appeared, huh?
7: What is this? Have an AI proofread it.
8: >>1 “I told Sato she only had two options: pay or pay.” What does that even mean?
9: Why didn’t he try to recover the debt after losing in court?
10: After Takano gets out, he’ll probably go after this guy.
11: ORNIS Corporation? That ORNIS? They’re a powerhouse in business.
12: Sponge woman.
13: Was she trying to squeeze 3 million yen out of Takano?
14: I don’t understand any of this.
15: >>8 It’s probably “pay or don’t pay.” I’m surprised there’s even an option not to pay.
16: Translate this already. Is this guy going to be Takano’s next target?
17: Isn’t paying the only option?
18: >>8 I thought I was the idiot for not understanding.
19: I kinda get why she didn’t have money.
20: The ex-boyfriend before Yui is the real mastermind. Investigate that.
21: Apparently, she ran up debts and fled when she was a hostess in Yamagata.
22: If paying would have settled it, why didn’t he just pay?
23: He should’ve paid the 2.5 million yen himself.
24: This guy’s basically a scammer too.
25: I tried to read it, but I couldn’t understand it.
26: Idiots can’t use punctuation properly.
27: Why was the victim always broke? Where did the money go?
28: >>8 It’s a homage to TWICE’s “YES or YES.”
29: >>25 If you understood it, that would be weird.
30: >>20 The person who advised her to default knows who it is but can’t say.
31: >>11 Which ORNIS are we talking about?
32: Private arrest types also claim they’re innocent right before getting arrested. This guy’s next.
33: I have no idea what he’s trying to say.
34: >>30 Why can’t he say it?
35: If they’d just paid the 250,000 yen, maybe nothing would’ve happened.
36: What does “pay or pay” even mean?
37: >>31 That one. Are you serious?
38: >>27 The streaming revenue went into the fiancé’s account.
39: >>27 It was set up to repay the debt to him.
40: The loan request email looks like it was written by a man. Do you know something?
41: >>37 Seriously, I don’t know.
42: He’s just trying to say he didn’t make the woman do it. But the more he talks, the more he sounds like the main scammer.
43: Dead men tell no tales, but leeches do.
44: The story’s completely different. LOL.
https://i.imgur.com/6eeScaY.jpeg
https://i.imgur.com/1DwcCXf.jpeg
45: Is this guy the mastermind?
46: I don’t get why he came forward. He’s just a guy who lent money in exchange for a verbal engagement.
47: He should’ve just repaid the 100,000 yen for the wedding fund.
48: >>1 In the end, it’s just a story about a gold-digging woman who got killed by the guy she scammed. No one in Japan feels sorry for her.
49: A CEO borrowing from consumer finance to lend to a woman? What’s going on?
50: Why did the fiancé come forward?
51: He’s aiming for a spot on “Breaking Down.”
52: Pay back the money.
53: He’s deliberately mixing up the timeline to mislead people. He’s guilty.
54: >>44 He’s pure evil.
55: What was the woman spending all her money on? Host clubs?
56: Was he siphoning off her streaming revenue?
57: The second half of the post is a mess.
58: He should’ve just paid it himself.
59: Living in a high-rise but can’t pay 250,000 yen? LOL.
60: Is this the start of a revenge story?
61: He’s just saying he didn’t advise her to borrow from loan sharks and that he has his own debts.
62: Why did he come forward? There’s no way to monetize this.
63: If they really had a three-way discussion, the fiancé doesn’t seem that angry.
64: Where did “ぢさつ” go?
65: Arrest is imminent.
66: Just repay the 250,000 yen.
67: He’s saying he’s not the mastermind, just someone who knew about the debt and tried to avoid paying.
68: He’s saying he was also deceived and only took back the money he lent.
69: I don’t understand what this fiancé wants or is trying to say.
70: >>44 LOL.
71: I don’t get it. Was the high-rise boyfriend also deceived?
72: >>55 He was just funneling her streaming revenue into his account.
73: A poorly written attempt to cover up the truth.
74: Is this a made-up story?
75: The only clear fact is the court ordered her to pay 250,000 yen.
76: Why didn’t this guy run away? Why come forward?
77: The downside of social media. People who flaunt wealth online are often broke.
78: If the fiancé had just paid the 250,000 yen, it might’ve been settled.
79: >>59 It’s weird. Living in a high-rise just to show off.
80: Was the victim’s streaming revenue going into the fiancé’s account?
81: He’s just saying he’s innocent before the suspect or weekly magazines expose him.
82: All three of them were crazy.
83: What does his company even do?
84: Why did he come forward? What’s the benefit?
85: What was the money trail?
86: This guy must’ve been bad at Japanese.
87: Takano seems sane compared to these people.
88: I hope this guy gets arrested too. He’s clearly involved.
89: If he’s a CEO, he should’ve just paid the 250,000 yen.
90: >>78 The fiancé seems a bit off too.
91: LOL at the mention of a Horipro talent.
92: The way the LINE messages are written is weird.
93: This is basically a confession. Police should arrest him.
94: The court will likely give the defendant 8 years with 3 years suspended.
95: What’s the point? What’s he trying to say?
96: The police will investigate the money trail, and he’s in trouble.
97: He’s just making excuses for not repaying the debt.
98: If he was involved, the police will question him.
99: She could’ve earned the money herself instead of borrowing.
100: >>55 Apparently, she was recently into poker.