Hana Kurusu/Synopsis

History
As a seemingly orphaned young child, Hana and others her age were held captive by a monstrous cursed spirit that behaved like their mother, feeding them but killing whoever cried or complained. Remaining silent to survive, Hana lived like this for about one year until she was saved by a similarly young Megumi Fushiguro, who used his white dog shikigami to lead her into escaping. Thus falling for the boy, Hana resolved herself to become someone who helps others like Megumi helped her, to become worthy of one day standing by his side.

Eventually, the Angel, an ancient sorcerer from a thousand years ago, would incarnate into Hana's body. Said sorcerer, like many others over the centuries, had entered a deal with Kenjaku (due to not having or knowing the means to become a cursed object on her own to undergo incarnation), but unlike most incarnations, the Angel allowed Hana to remain in control of herself. In this symbiotic state, Hana and the Angel would eventually enter the Culling Game once Kenjaku had started it.

Perfect Preparation Arc
During the early stages of the Culling Game as Tengen makes reference to the Angel's existence as one who can "extinguish" cursed techniques, Hana is seen floating upside-down in the skies over Tokyo.

Culling Game Arc
Through her ability to cross Colony borders via the Angel's technique, Hana eventually travels from Tokyo's No. 2 to the No. 1 Colony, where she encounters Megumi as he collapses from exhaustion in an alleyway, after his fight against Reggie Star. Hana carries Megumi to a hotel for him to recover along with Yuji Itadori and Fumihiko Takaba, where Megumi wakes up during the night of November 14. Hana and the Angel introduce themselves properly as a pair that live symbiotically as host and incarnate respectively. The Angel elaborates on the scope of her abilities to nullify curses, including barriers and seals, as well as her goal to wipe out all other Culling Game players, chiefly the "Disgraced One", and offers to unseal Satoru Gojo in exchange for receiving aid in her quest.

Once US Army soldiers have begun invading the Colonies due to Kenjaku's machinations (aimed at the mass slaughter of non-sorcerers by curses to fill the Colonies with more cursed energy), Hana and co. leave their hotel and encounter a traitorous Japanese soldier who has guided the US soldiers through the Colonies, allowing the group to further deduce Kenjaku's plan. When Yuji disagrees with the Angel about saving all the non-sorcerers, as the latter does not want Hana and thus herself put in harm's way, Hana shows herself annoyed at Yuji's rude attitude. Shortly thereafter, Hana encounters and saves a US soldier before reuniting with the others.

On the 16th, at noon, Hana and co. meet up with Maki Zenin, discussing what is to be done now that Tengen has been captured by Kenjaku. When Maki brings up how Culling Game players' cannot cross Colony borders, Hana mentions that she can, with the Angel expounding that while Hana alone can freely move between Colonies, outright destroying their barriers would require that she target their foundation. Hence, Megumi adds a rule that a player can leave the Culling Game by expending 100 points to invite a new player as a substitute. At around 3 PM, the group reaches a rooftop where they meet up with Tsumiki, Megumi's sister. When "Tsumiki" adds a twelfth rule permitting free entry/exit across Colonies, the group is shocked to discover that Tsumiki is actually an incarnated sorcerer from the past. As the latter flies away, Hana and Yuji try to follow, but before they can Sukuna switches with Yuji (using their prior-made secret binding vow). Sukuna promptly renders Hana unconscious before using a finger of his to possess Megumi, switching hosts. Hana quickly regains consciousness and casts "Jacob's Ladder" to try to strip Sukuna away from Megumi, but is fooled when the King of Curses pretends to be Megumi to lure her into an embrace, whereupon Sukuna critically wounds and dispatches the girl, causing her to fall off the rooftop they were on.

Shinjuku Showdown Arc
Hana was later healed by Yuta Okkotsu and Shoko Ieiri after being saved earlier by Rin Amai and possibly Takaba. No longer in a condition to fight, Hana still agrees to unseal Gojo by using the Angel's power on the Prison Realm, which Hana does successfully at Jujutsu High's Training Ground No. 4, finally freeing the strongest sorcerer.

Sometime prior to the Shinjuku Showdown, the Angel offers advice on how to deal with Sukuna and Kenjaku, stating that they ought to attack Kenjaku before Sukuna's and Gojo's fight ends, as beating the King of Curses would mean nothing if Kenjaku achieves his goal of merging all humans in Japan with Tengen. The Angel nominates Takaba as a fighter fit to engage Kenjaku, consequently explaining his cursed technique.

On December 24, a month after his unsealing, Gojo is prepped for his fight against Sukuna in Shinjuku, and Hana is present alongside the others to see him off. Once the fight is underway, Hana and the Angel are in some building a safe distance away, using Mei Mei's crows to view a broadcast of the fight alongside their allies, with Hana and the Angel commenting on and, at several points, being shocked by the events of the battle as they unfold.