|“||I'm going to steal "one"... one of those "fruits"...||”|
—Yoshikage Kira, JJL Chapter 49
Yoshikage is the son of Holy Joestar-Kira and the older brother of Kyo Nijimura. Yoshikage is one of the two original identities and mental inhabitant of Josuke Higashikata. He worked as a marine surgeon.
Kira was a man of slim to medium build and seemingly average height. He was handsome, with dark eyes and fine features, and wavy black hair of irregular chin length resembling thin naturally occurring dreads. According to Ojiro Sasame, he had beautiful hands and somehow bore resemblance to Josuke despite him stating their obvious differences in appearance. He wore a sailor uniform much like the protagonist's, though with a tasseled beret or bonnet. His corpse is discovered without testicles, in contrast with Josuke's four, without a related wound.
Kira was a narcissist, keeping sculptures of his own hands around his house, apparently as documents to their ideal state. A copy of the Mona Lisa hangs from a wall in his living room, alluding to the Kira of Diamond Is Unbreakable, indicating a similar fascination with beautiful hands.
His interactions with others are mostly cold and apathetic. As a teenager, he immediately jumped to the conclusion that a drowned and unconscious Josefumi was fated to die, showing exasperation when his mother prompted him to manually save the boy's life, only wishing to see Titanic in theater later and leaving the hospital alone because of it. As an adult, when a fellow crew member on his team is injured, sustaining heavy blood loss and the inability to breathe, as the surgeon of the crew, Kira applied little effort to helping him, nonchalantly putting his shoes on before getting out of bed and ordering the others to hold his hand and encourage him, without so much as looking in his direction (his lack of concern was mostly due to presumably knowing the seriousness of the injury and that the crew member was in no life-threatening danger). Later, he easily antagonizes Rock Humans by referring to them as things rather than individuals, even though he had not interacted with any of them at that point.
He is shown in several instances speaking to Sasame in a deliberately confusing and insulting manner, intimidating and threatening him away from the coast in order to rectify Kira's personal problem with him as a surfer; being 'indecisive' about being either a man of the sea or of the land. However, his sister Kyo claims that he was not heartless, as he cared for his mother and actively worked to save her from the same disease that plagues the Higashikata family. On another occassion, Kira sacrificed his life to save Josefumi when their plan to cultivate and harvest the Rokakaka fruit was found out by Yotsuyu and Damo, as he believed Josefumi had no right to die since he was only involved because of Kira's own personal agenda. This proves he can be a good loyal friend to those he cares for.
Kira seems to have had certain obsessive-compulsive tendencies, keeping an organized stock of entirely green foods, and shelves of containers of his fingernails in his bathroom, labelled by date.
- Main article: Killer Queen (JoJolion)
Kira's Stand is Killer Queen, with the ability to generate bubbles that explode on contact. Part of this Stand is fused to Josefumi Kujo's when the two are buried together, resulting in Soft & Wet.
Kira possesses a small sailing boat, and at least knows how to pilot it.
It is suggested that Kira had hypnotic powers of persuasion of some sort by the extreme influence he wielded over Sasame on a past occasion, talking him into eating his own fingers. However nothing else of the sort was shown.
Kira then became a marine surgeon who was once acquainted with Ojiro Sasame. He continuously bullied Sasame questioning him as to whether surfers are "people of the sea or people of the land", stating that he "dislikes passing through the borders of things", as well as the ambiguity in Sasame's profession, before somehow convincing him to bite off or eat all of his fingers.
In 2009, while on duty, Kira accidentally stumbled over Aisho Dainenjiyama in his rock form, discovering the existence of the Rock Humans. Curious, Kira then investigated Aisho's activities, learned of the Rokakaka's existence, and met with Josefumi Kujo. Josefumi, having a debt toward Kira and his mother for saving his life many years before, agreed to cooperate with Kira in stealing the Rokakaka. The two eventually managed to snatch a branch of the tree from Aisho without him knowing, planning to graft the branch to another tree to harvest the Rokakaka later.
At some point Kira associates with Karera Sakunami, and the two take a photo together with Josefumi. She remarks that Josefumi and Kira used to live together.
Kira and Josefumi were eventually found by Tamaki Damo and Yotsuyu Yagiyama. Tamaki proceeded to torture Kira and Josefumi, at one point cutting off Kira's liver. Kira and Josefumi however managed to escape and he was dragged to the location of the Rokakaka, having already lost consciousness. Josefumi tried to heal him using one of the fruits, even using his Soft & Wet to break the fruit down to feed via bubbles. However this proved to be in vain, as Kira had already died from his injuries. Josefumi, already undergoing the equivalent exchange process from the Rokakaka, hugged his friend as the two were crushed by debris: causing them to fuse together from the Wall Eye. The protagonist later emerged from the rubble, with parts of Kira's body and mind fused to his own.
Kira's corpse is later found at this site, his cause of death diagnosed as cardiac arrest. The protagonist and Yasuho subsequently attempt to investigate Kira, particularly due to his connections to the Higashikata family.
- Kira's address is listed as 258 Morioh Township, Apartment 204.
- Where the protagonist is said to have four testicles, Kira in JoJolion had none. This is explained later on when it is revealed that the protagonist is actually a fusion of Kira and Josefumi.
- Curiously, when fighting Tamaki Damo onboard his boat, Kira lets out a shout spelt similarly to one of the series' more familiar battle cries, "WRRRRY".