This problem is very complex and cannot be solved easily.

He acted as his own herald.

He put on his combat uniform and headed for enemy territory.

The statue of Fukurokuju symbolizes wealth and longevity.

Since he is always laughing, it can be said that 'fortune comes in by a merry gate'.

I make a round trip to school every day.

He is always cheerful and believes in the proverb 'Fortune comes in by a merry gate.'

This painting depicts Fukurokuju.

He suffers from adrenal cortex insufficiency.

This factory reuses the byproducts produced during the manufacturing process.