About me: Renji Yomo is Yoshimura's right hand. He is an old friend of Uta and Itori. Due to his feeding habits and his avian-shaped mask, he has earned the nickname Raven.
Two years after the Owl Suppression Operation, he returns as the manager of the coffee shop :re, alongside Touka Kirishima. Following its destruction he joins the newly formed organization Goat, thus relocating to the 24th ward along with its other members.
Quiet and reserved, Yomo was originally a hot-blooded ghoul who would retaliate violently, especially against Uta back in their juvenile days in the 4th ward. Before working at Anteiku, Yomo was a very vengeful person. He harbored immense hatred towards Kishou Arima for killing his sister, Hikari. This hate caused him to lose his composure when he was up against Arima and attack in a blind fury. Since his meeting with Yoshimura, he gradually became more composed and loyal to the manager while he worked on the behind-the-scenes jobs unquestionably. Although he displays a cold demeanor, Yomo does care about his friends and coworkers. When caring for Hetare, he is overprotective and curiously invested, even trying to teach it new words and calling him "Shooting Star Wing" based on his appearance.
Yomo used to live with his sister, Hikari Kirishima, until she was killed by a teenage Kishou Arima six years before moving to the 4th ward where he settled down for a while after befriending Uta (though not before multiple conflicts with him). After Arima appeared in the 4th ward, Yomo fought with Arima out of rage for his deceased sister, only to find out that he made his sister's kagune into his new quinque, or at least implied so. Midway through, Yoshimura stopped the fight and rescued Yomo.
During the confrontation between Ken Kaneki and Koutarou Amon, Yomo was somewhere watching, and later came forward to Kaneki to calm him down. With his ghoul powers going out of control, Kaneki stabbed Yomo in the stomach before he realized who it was. When Kaneki saw his face, he started crying.
During the CCG's attack on Aogiri Tree, Anteiku also planned an attack on the 11th Ward Base of Aogiri Tree to rescue Ken Kaneki. Arriving there, they split up and Yomo teamed up with Shuu Tsukiyama and Uta, who later had to fight against Noro.
Yomo appeared at the end of Kaneki's confrontation with Akihiro Kanou, freeing Rize Kamishiro, leaving Kaneki in a state of confusion and shock. Moments before his departure, he warned Kaneki of the approaching Doves.
Yomo later was approached by Kaneki in his home, who wished to know of Yomo's actions at Kanou's lab and of Yoshimura's relation with the One-Eyed Owl. Kaneki also expressed his desire to see Rize as she had been the one to give him strength and was furious when Yomo denied his request.[7] After Kaneki's reunion with the starved Rize, Yomo comforted him saying that through all the battles Kaneki had been through, he had always fought with his own strength rather than Rize's. He makes Kaneki some coffee, which Kaneki remarked was similar to Yoshimura's.
He did not partake in the battle, instead he took care of Touka, as per Yoshimura's orders. He told Touka that they could not remain in the 20th ward anymore and denied Touka's request to fight in Anteiku's battle. He told Touka what she needed was time to think rather than punishment for her past deeds.
After the aftermath of the CCG's attack on Anteiku, he reminded Touka to get ready to move and that Kaneki had lost his way and therefore could not return to Anteiku. Regardless of Yomo's thoughts, Touka told him that she believed in Kaneki's return.
