Ok so this takes place after this: [link]
so I would suggest that if you haven't read that first you should or you might not understand what's going on between these two. Also the preview image is from that same comic. I thought it fit well. xD
Anyways so it's not exactly common knowledge but Blade is extremely insecure about his own appearances and his body in general. The only thing he ever really shows confidence in is his skill with a Katar and his own skills as a Guillotine Cross. But even so he's got pretty much no self-confidence. Hence why when Kyrius tries to get close to him and offers to accompany him back to his hotel room so that they can go and get the cake together after he's had a shower, he blushes and tries to hide. And of course he doesn't want her to see his left eye so he keeps that as hidden as possible, but he does that normally so no surprise on that one. Anyways, enjoy!
Kyrius Keeper/Preview Image (c):
Blade Kishitani (c):
Warlock/Guillotine Cross/Prontera/Soul Drain (c): Gravity/Ragnarok Online