I noticed that there was some confusion about the ending of this manga. Pretty much the ending is telling you that he is actually the grandfather that he was looking for throughout the story. Which you can see when he puts the mask on for the last time. Also another example was given when his supposed grandfather broke the mask when they decided to go back to china. This tells you that he is no longer the grandfather at the start of the story. Hope this helped ;)
I've read this before on another site and on here chapter 19 is missing. I really like this manga but it's hard to get into it when parts of it are missing.
I kind of found this manga slightly embarrassing at the start, but the more I read the cuter it became. I really like it! Please continue to update it!
I liked it; it was funny.