He is working as my helper.

He showed me a swordsmanship technique using suki-sake.

He told a lewd joke and made everyone laugh.

He likes to talk about lewdness.

Katsusuke is my best friend.

I like climbing Mount Rakukiyama.

If you save a little bit every day, it will become a large amount, just like many a mickle makes a muckle.

My dream is to climb Mount Amakami.

Mensa is one of the constellations in the southern hemisphere.

A pangolin is a very rare animal.