Mr. Hakkaku is my best friend.

I explained the dative case to him.

In Latin, the ablative case is mainly used to indicate direction, origin, and separation.

His life has experienced a major alteration.

He decided to alter the plan.

This beautiful seahorse is one of the most mysterious creatures in the sea.

In Japanese grammar, the adnominal case is the form where nouns or pronouns modify other nouns.

My grandfather used to raise domestic fowls.

He wrote a letter and sent it to his friend.

In that company, he is truly a great man standing out among the crowd.