In Detective Conan, Seiji Zuhara's identity was discovered by Piesk and killed by gin in the Cup City Hotel.

From the animated version of Detective Conan, 176, 177, 178.

176 farewell to black organizations (gray original)?

On the way home from school, Conan and Zuyuan found Kim's car in the black organization. Conan installed a transmitter and a bug in the car for tracking, but Gin found it, so he realized the existence of Zuyuan.

Conan and Zuyuan went to Kim, pisco and others to carry out the murder plan according to the address heard by the bug, and there was a memorial service for the film director. During the slide show, politician Nomiguchi Shigehiko was killed.

177 farewell to black organization (Conan)?

At the moment when Nomiguchi Shigehiko was killed, Conan found a purple handkerchief and then a broken art lamp ring. According to these two clues, Conan launched an investigation, but during the investigation, Ashen was taken away by unknown people.

Conan contacted Zuyuan through glasses and learned that she was locked in the wine cellar of the hotel. Conan made Luyuan drink tempting bread. At this time, Conan saw Gin outside the hotel, and the body of Zuyuan in the wine cellar was also changing.

178 farewell to the black organization (solution)?

After Ginny left the wine cellar, the ash hidden in the chimney climbed to the roof with her enlarged body. However, just after reporting the doctor's safety, gunshots rang out behind him. It was Gin who found her in the wine cellar.

On the other hand, Conan also learned the real identity of pisco, the murderer of Nomiguchi Shigehiko. After investigating Ashhara's position, Conan arrived quickly. Just as King was about to shoot Asura, Conan fired an anesthetic needle at King, and Asura took the opportunity to return to the wine cellar from the chimney. Unexpectedly, when she woke up, pisco had appeared in front of her. ...

Extended data:

Introduction to related roles:

Gin:

The villain in the Japanese anime Detective Conan is an important member of the black organization. Often appears with vodka. Wearing a black trench coat, long silver hair (golden in the early days), his face is always covered by a hat and bangs. He is cruel and cool-headed, and can kill anyone without hesitation.

Frequent assassinations and the removal of organization spies are the chief culprit of Kudou Shinichi's downfall of APTX4869 and one of Conan's main enemies.

Peisker:

Peisker, formerly known as Masuyama Kenzō, is a character in the Japanese anime Detective Conan. The veteran members of the black organization, relying on the strength of the organization to become successful entrepreneurs, are closely related to Boss.

He had a deep friendship with Miyano Atsushi and Elena Miyano, learned about some drugs being developed, and was deeply impressed by Miyano Shiho when he was a child. He was photographed by photographers in the assassination of politician Nomiguchi Shigehiko, leaving important evidence of murder, and was silenced by gin under the order of Boss. Haiyuan Ai was once thought to be Miyano Shiho, but the assassination was attempted.

References:

Baidu Encyclopedia-Detective Conan TV Edition