Alright so in your comic there's two main characters: Bomeo and its master. What's kinda awkward about your blurb is that it mentions a "master's student" picking up the blanket. I read your comic and since we don't see that event happening just yet, it gets a bit confusing (heck, the master in question appears to be a student himself). Because of that, I'm assuming that this was a typo and that Bomeo's current master was the one who found it, not someone else.
Another thing, Bomeo refers to its owner as "master," but the reader can tell he's just a regular guy. So, how about adjusting the blurb to fit that case?
A guy picks up a cat blanket on the street one day. Unknown to him, the blanket is alive and always ready to offer its service! But only secretly, as it cannot reveal it's past...
(okay maybe I'm a bit of a fan girl for ending in ellipses but I just think they're neat
)
Anyway, instead of "guy," you can use another term to identify him. Looking at episode 2, he kinda appears to be a college student to me, so you can say "A college student picks up a cat blanket" and maybe even add a adjective like "A lonely college student" (he doesn't appear to have anyone else in this comic, so this can be used to emphasize how significant is it that he now has Bomeo in his life).