This wall was a only left part of old buildings provided by the government. Since it was haphazardly and poorly constructed, the government decided to demolish these old houses so as to apply the Urban Renewal Strategy. However, it contained a lot of memory of the local residents. I didn't know who left these words on the wall but the meaning of words is 'stay'. Perhaps the person who wrote this just because a spontaneous thought or an impulse. But stay here（留來）still express a strong sentimental emotion about this place and about how we remember the kindness part of this place. However, although these two words are very emotional but meanwhile they contain so much beauty, goodness and kindness of this demolish building. The two words (留來）hidden behind greenish bush seem like telling you that something might disappear or vanish but something new will stay or will be still growing just like these summer leaves.