This fountain pen is my favorite.

We go on a family trip once a year.

Sannen is my best friend, and he is a very interesting person.

Kou Sennen is my best friend.

I was able to know the truth of the hundredth year.

There is a Citrus nobilis tree in my garden.

We are in a marriage with an age gap, but our love is deep.

He started a business without a plan, forgetting the lesson of 'peach and chestnut seeds take three years to bear fruit, persimmons eight years.'

He chose to leave the glamour and pursue reality.

He succeeded in a difficult project with the spirit of 'ishi no ue ni mo sannen', which means great works are performed by perseverance.