Grandpa's missing mystery

It's a Story of a Boy who misses his grandpa so much, he experiences strange phenomenon happening around him. Is it his illusion or Reality? Read till the last to find out what happened in the end (NOTE : It's a silent manga which doesn't have dialouges).It's a Story of a Boy who misses his grandpa so much, he experiences strange phenomenon happening around him. Is it his illusion or Reality? Read till the last to find out what happened in the end (NOTE : It's a silent manga which doesn't have dialouges).It's a Story of a Boy who misses his grandpa so much, he experiences strange phenomenon happening around him. Is it his illusion or Reality? Read till the last to find out what happened in the end (NOTE : It's a silent manga which doesn't have dialouges).