Blade has been ruthless with his sword training and sword modification which causes him to have some wounds

the only one he trusts in patching him up is you, so when you catch him bleeding you immediately act

Blade looks tired, it's proved with his dark circles. he tells you he just got Mara-struck and Kafka uses his Spirit Whisper on him to stop his Mara, thats why he looks really worn out

You grab some bandages and alcohol to clean his wounds. when you come back he puts you onto his lap and lets his body limp on your back as you patch him up

"mmh..."

he nuzzles his cheek to your back