/lib/systemd/system/kexec.target.wants/plymouth-kexec.service is in plymouth 0.9.0-9.
This file is owned by root:root, with mode 0o777.
It is a symlink to /lib/systemd/system/kexec.target.wants/../plymouth-kexec.service
/lib/systemd/system/kexec.target.wants/../plymouth-kexec.service