League of Villains#
All For One#
Kurogiri seems to be loyal to the Sensei. He has been entrusted with looking after the latter's successor and ensures that he is given the proper guidance.[1].
Tomura Shigaraki#
Kurogiri faithfully serves Tomura and carries out any command Tomura gives without question. He also appears to be a mentor to Tomura as Tomura's development was entrusted to him by All for One.[1] Kurogiri tries to curtail Tomura's impulsive nature by reasoning with him or giving him examples of to copy. In the case of Tomura's introduction to Dabi and Himiko Toga where an irritated Tomura tries to kill the latter two and Kurogiri stops him and reminds him that "if [they] are to act upon [his] desires, expanding the League is a necessity" and advises Tomura to accept Dabi and Himiko.[2] Kurogiri tries to recruit Stain to show Tomura what having control over his impulsiveness looks like and how it can help him gain power.[3]
Earlier in their relationship, Tomura would call Kurogiri names such as 'idiot' and often reply to him in a brusque manner. Kurogiri appears unfazed by the name-calling.[4] After his capture, Himiko notes that Tomura misses Kurogiri.[5] Daruma Ujiko believes that Kurogiri babies Tomura.[6] It is later revealed that Kurogiri is a Nomu, and he was created to specifically care for Tomura.[7]
During the Final War, Spinner awakens Kurogiri by using Tomura's one remaining hand that All For One had placed a beacon in that would awaken Kurogiri. Spinner placed it on Kurogiri's face causing him to wake up but Kurogiri had also regained some of his former memories as Oboro Shirakumo. Nevertheless, upon waking up, "Kurogiri" declared himself the protector of Tomura and immediately warped Himiko and Dabi to where they wanted to be. He also warped a myriad of Twice clones to various battlefields including where Tomura was while he warped himself to Tomura's side, showing his undying loyalty to him.
By the time "Kurogiri" arrived, the vestige of All For One that had partial control over Tomura's body was completely losing control to Tomura. He ordered "Kurogiri" to warp him to where his real body was so he could complete his plan and have full control, but "Kurogiri's" programming prevented him from following All For One's orders and instead he warped away his friends Shota and Hizashi.
During the final battle as "Kurogiri" watched Izuku Midoriya destroy Tomura's body which All For One had fully taken control of, he attempted to prevent Deku from delivering another hit and told All For One to give Tomura his body back since his friends were waiting for him. However, "Kurogiri" dissipated and was unable to save Tomura who died soon after alongside All For One as his body crumbled into nothingness.