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.

Episode 13

During the war of the Sonozaki and Shimano families, Chris, Kiryu and Steven are backed into a corner by the sheer numbers of the Shimano family, until Kasai arrives with two truckloads of reinforcements after being delayed defending the Sonozaki state with Leo. Kasai and Steven mow down the enemy forces, while Kiryu and Chris deliver a deadly double punch to Shimano, Chris loses it for a moment, but Kiryu reminds him no matter how many of his friends Shimano has killed, as a main character he can't afford to stoop to his level, and Chris just takes the key as him and Kiryu turn around for the police to take care of him. Suddenly, Shimano draws out a hidden Keyboard and throws it at Kiryu, but Steven blocks it, and Shimano intends to throw one at Chris, before suddenly being shot in the head by an unknown assailant, which Chris chalks up to a stray bullet.

The now dying Steven tells Kiryu he's the only true heir to Aikido, putting an end to the yakuza was his only choice since he was indebted to him, and more importantly, he hopes Kiryu can forgive him since of the parents of all the children at the orphanage... he snatched their punani. Steven passes away as he wishes Kiryu to continue to protect the Sonozaki Family, and the three former members of Evolution arrive to inform that the entire Evolution Alliance is on the move...

Episode 14

Having learned of Hazz Maticus' true intentions, Leon Kennedy and Fred Jones inform Kiryu's friends and along The Cagist, Date Kaname and Suou Katsuya arrive to the top of Coolsville Hills in an helicopter, just after Hazz is done explaining how he hid his past in his son, artificially aged himself, and faked his own death. Before Hazz can end Kiryu, Leon and Fred drop down and confront him, as Kiryu is taken away in the helicopter. Hazz's presidential guard of 4 S.W.A.T. Members challenges them, but, they are mowed down by the paranormal patrol, and at last Hazz fights them directly with the S.W.A.T. Captain. Despite all this power, his plan, his gun, and his complex old age, Hazz couldn't stop Leon and Fred from ending his reign and saving China, not only because they had apple juice and a dilapidated van, but comrades by their side; Kiryu Kazuma... Suou Katsuya... Date Kaname... Shoji Shingo... Majima Goro and his brother... Warden Osborne... Officer Joe... Osama bin Laden... Kasai Tatsuyoshi... Van Darkholme... The Cagist... Hanyuu... Extra... Vergil... Dante... HUNK... Zagreus... Ryback, Chris Masters, Sheamus... Narihisago Akihito... Zoomer... Tomitake Jirou... Hassan and Kojima... Chuck... and Gregory Edgeworth... all irreplaceable people whose bonds have carried them to defeat him.

Before Kiryu had left, he visited the Sonozaki residence; since he was Steven's aikido heir, he was the next in line to be patriarch... but he gave that up, and passed the chance to the twins, he's sure they'll make Steven proud, as long as Kasai is there to protect them.