Kasai Tatsuyoshi

A character from Higurashi no Naku Koro ni.

Thank You Kasai
A captain-ranked member of the Sonozaki Family, a seasoned Yakuza who serves as a bodyguard these days. Simp.

Off-Season 7
Spends 4 hours looking at the panties of the entire cast. TYK.

Season 0
The Captain of the Sonozaki Family who often guards the main residence, he's semi-retired since receiving a leg and shoulder injuries. He has a long history with the Sonozaki as well as with Kiryu Kazuma and Matou Kariya.Episode 4

While guarding the Sonozaki Residence, the entrance is broken into by Leon S. Kennedy, and Kasai tries to drive the uninvited visitor away. Leon mentions Ada Wong, and Kasai states that despite knowing the name, they hold no relation to her, but as Leon refuses to listen, and despite his displeasure in doing so, Kasai intervenes. He removes his jacket revealing an Akane tattoo, just as Leon does an Ada one. Leon drunkenly does a shitty strategy that somehow works against the Shotgun Dragon, but makes for a shitty match.

Episode 5

From the start, Kasai had seen his noble intentions before the match and it didn't get him going. Being another simp man who has the beauty of a woman tattooed on his back, he is willing to give him a hand. Fred tells Leon that the GPS signal is actually pointing to a man inside the house, and Kasai offers them to talk to Steven Sonozaki, the Patriarch of the Sonozaki Family.

The three enter the residence and Kasai informs Steven of the two inquiring his presence, and through Steven's intense humbleness, he allows them to speak to him, and Kasai retires.

Episode 9

Steven and Kasai were at the Eden of Coolsville (as proven by Tomitake's photographs) before the truck hit the building. According to Date, Steven was left bedridden likely by the accident, and Kasai took him to the Sonozaki residence.

Episode 10

On the Sonozaki Residence, Kiryu finds out Steven is very sick, and he almost can't believe a man who could survive helicopter machine-gun fire would, somehow, fall ill. Kiryu and Kasai talk about recent events and Kasai mentions the Shimano family being on the move, likely because of Steven's condition, and that this might be the Sonozaki's greatest conflict yet. But somehow, that's not what's bothering Kasai, because something more terrifying than even that has surfaced; the thing that was found near the are where Steven lost consciousness was... a Keyboard.

Episode 11
As Kasai explains their enemies will put all organized crime at risk with the use of such weapons, Kiryu is astounded.

After crawling from swamp at the back of the Sonozaki Residence, the leader of the Avatars of Allah and an old rival of the Sonozaki Family, Osama bin Laden, appears behind Kiryu, who's surprised to see him after all this time alive. Osama comes with the intentions to reveal the truth however, for the sake of the two followers of Allah he met in prison that taught him so much, and reveals what he was looking for in prison in the first place. The bank records situate the moving of huge amounts of money. The documents bring Kiryu back to the Keyboards Incident, where Cawdy betrayed them, Sudou Tatsuzou used everyone to further his goals, and his brother Kariya sacrificed his life to take out Sudou with the explosives at the top of the Millennium Tower. The documents reveal that everything was funded by "Rob Wellington".

Osama wants to correct his actions from being on Sudou's payroll back then, and this time stop their plan from coming to fruition. Their contact in the Coolsville Police Department is amassing keyboards at the docks, so Kiryu decides to go with Osama to stop them.