Portraits revealed through your current reading position.
Li Jun concealed his vampirism from nearly all allies until Miriam's death cured him.
Li Jun was infected with vampirism but told only his sister Li Na and Zhang. Katia Grim learns the truth after Miriam Dom dies and cures him through the progenitor link.
Katia remains angry because keeping the infection secret could have endangered the wider crawler group and complicated their response.
Li Jun is one of the crawler survivors cured by Miriam's sacrifice and an example of dangerous secrecy within the alliance.
Also appears in books you've already read — spoiler-safe to their endings: