Rekka Hoshimiya's History
Rekka was an orphan who meet Sister Sumire at a very young age. She saw him as an energetic and strong willed child who believed in his sense of justice. These qualities will drive him forward as a member of Company 1, where he became he became close friends and partners with Karim and Li despite their conflicting personalities. Over the years he would make many trips to St Raffles Convent and become a very popular figure among the public, even inspiring Tamaki Kotatsu to join the Fire Force.
After the scuffle between Companies 5 and 8, Rekka and fellow Lieutenants Karim Flam and Huo Yan Li were approached by Captain Burns and they discussed the event. Later, when rookies Shinra Kusakabe, Arthur Boyle, Takeru Noto, and Toru Kishiri arrived at the 1st Special Fire Fighting Cathedral for their training regiment to begin, Rekka was pitted against Takeru for the sparring matches, and Rekka was astonished by the trainees raw power. Takeru launched a myriad of missiles at him, but Rekka evaded the attack, forcing Karim to freeze the missiles.
Some time later, Rekka was seen making a phone call in a phone booth to inform the person on the other end that the creation of artificial Infernals would not be delayed.
When an Infernal was spotted in Shinjuku District, Rekka took lead of one of the squads. During the mission, he used a bug on a man (witnessed by Shinra) before regrouping with Karim. Shinra and Arthur soon after approached both Lieutenants, but Shinra lied and said they were simply lost.
Later that same day, with the help of Tamaki, Rekka had assembled a small group people - a mother and a handful of small children - in an abandoned warehouse and claimed to know a prayer that could protect people from succumbing to Spontaneous Human Combustion. When Tamaki insisted on remaining to witness the prayer in spite of his repeated orders for her to leave, Rekka squeezed her into unconsciousness under the guise of hugging her in thanks for her assistance.
Understandably shaken, the woman tried to take the children and go, but Rekka stopped her by infecting her with a bug, and she was transformed into an Infernal. Rekka immediately killed her. When he attempted to infect one of the children, Tamaki intervened and slapped Rekka, saying how much she once admired him. This interference triggered some sort of mania within Rekka, so he punched her, knocking her to the ground, and segues into a monologue declaring he'd never give up creating artificial Infernals for his leader and searching for someone "compatible with the spark". He then grabbed a small child and injected him with a bug. The child had an extreme reaction to the bug but did not die. Rekka was ecstatic to find somebody compatible with the spark. When Tamaki attempted to use her ability as a distress beacon, Rekka intensified his assault; kicking and stomping on the young woman - disappointed because he thought she was loyal.
As he readied his finishing blow, Shinra came in from the skies and stomped Rekka in the face, saving Tamaki in the process. He quickly got up and punched Shinra out of the way, shouting at him to not meddle with his plans. The two then engaged in a battle of opposing Ignition Abilities and fought on an even level. As they broke away from each other, the Bug inside Rekka's pocket began to make strange noises, and he realized it was reacting to Shinra's flames, indicating he was compatible with the spark. Ecstatic that he'd found the third person his leader was looking for, he began talking about the Adolla Burst. As he went on to talk about how many children he has burned, Shinra became enraged and went in for the attack, but was easily put down by Rekka's punches. After Shinra continuously fell to Rekka's fiery attacks, the two prepared to go all out and finish it once and for all. Rekka struggled to catch up with Shinra's mobility, and was struck in the face by a powerful kick. As Rekka lay on the floor enraged, Shinra demanded him to stop, but Rekka endured the pain and slowly stood up, all the while expressing his passion for converting humans into Infernals, worshiping the Sun God, and eventually turning the planet into a "second sun".
As Tamaki attempted to evacuate the children, Rekka began attacking them in the hope of disguising their deaths as a fire incident and bringing the children to his preacher. Out of control, Rekka began to burn his own arms due to the excessive use of his ability, but soon found his arms capsulized in a pillar of ice. Looking behind him, he saw Karim standing, and told him not to interfere, and tried to use his ability to melt the ice, though it just froze him more and more until his entire body was subdued (though Karim left air bubbles for Rekka to breathe)with the intent for him to stay alive. Immediately after, Arrow used her Ignition Ability to create a flaming arrow, and fired it straight through Rekka's chest, resulting in his death.
Rekka's death left a shadow over Company 1, with Karim choosing to working alongside Company 8 to uncover his lost friend's true nature and Onyango being called out of retirement to replace him. Most importantly, his discovery of Nataku Son and his Adolla Burst led to him being taken by Haijima Industries for testing. Suffering from the traumatic stress of Rekka's actions, Nataku is haunted by hallucinations of Rekka shouting praise and encouraging him to release his full power. These hallucinations combined with Haumea's influence cause Nataku to rampage against the White Clads and Company 8 when both groups attempt to apprehend him. Due to the influence of Yūichirō Kurono, Nataku seems more at peace with himself after the incident and is able to keep Rekka's influence under control, though it is still present.