I think that those threads are grandpa's illness and rourou took off some and grandpa feels much better because of it but it may be far fetched on my part ლ(´ڡ`ლ)
It’s not far fetched it’s actually true
Yeah, it is. Remember, it was also the same thread that RouRou saw on Yiyi on the first few chapters.. Rou can see them and can remove them..
I think that those threads are grandpa's illness and rourou took off some and grandpa feels much better because of it but it may be far fetched on my part ლ(´ڡ`ლ)