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Seimaru Tatsumi is the son of Shino Tatsumi and one of the victims in Hida's Trick of House Murder Case. He entered the Tatsumi family at the same time Shino became the second wife. In contrast to Ryunosuke, he is a polite young man who cares about his mother. However, he harbors intense hatred for Ryunosuke, who oppresses them.
Appearance[]
History[]
According to his former head's will, he will succeed the Tatsumi family. He looked down on Ryunosuke with a triumphant face, but as a result, his relationship with Ryunosuke deteriorated at once.
When Ryunosuke teases him, saying, "If Akanuma is Shino's new man, then a creepy man is Shino's new father," he punches him away, but Ryunosuke almost shoots him with a hunting rifle.
Thanks to Shino, he saved his life, but when he went out the day after Akanuma was murdered, he was brutally murdered by a "headhunter warrior" and his head was exposed in front of Hajime and Miyuki.
It's later revealed that Seimaru is Ayako Tatsumi's real son. He is replaced by Shino at the hospital. Seimaru, who didn't know anything about her, called Shino "Mother" and adored her. In contrast to the arrogant Ryunosuke, Seimaru grew up to be a sincere and kind young man, and Shino also loved him as if she were her own child. Until she kills him. ``I got in the way of Ryunosuke's succession to the family estate, and when he laughed at Ryunosuke when he learned that he could inherit the family estate, his face looked exactly like Ayako', so he was used and killed by his mother-in-law.
Unknowingly, he just turned on his mother-in-law's trauma switch , and he himself is not guilty or at fault . In the first place, he ridiculed Ryunosuke as revenge against Ryunosuke, who had severely oppressed Shino and himself.
To be murdered by his mother as a result of that is a truly unrequited young man.