It's steep and rocky up ahead. if they fall, they're done for!

This mountain path is pretty rough! Someone’s probably hurt!

I see... That's going to be hard!

By the time I noticed it, the rift between us had grown deep, with steep cliffs on either side.

Looks dangerous.

The road to mastering the Satoru Ball is long and treacherous, indeed.

From here on out, Legion's mission is going to be a long, severe one.

I passed this exam a number of years ago, and it was a tough and difficult road.

From the steep mountains to green lands...

It is a steep path you climb.

The road to repayment is harder than I imagined.

And Tanokura's expression was somehow grim.

This. The Statue of Liberty's facial expression is quite grim.

Then you know the hard looks as judgment gets set upon you. The sneers of people who never had to face sentence.

The pratimoksha vows are a guide to enlightenment, not binding laws. Though my path is paved with ever-greater challenges, I shall not give up.

It's a long, rugged journey. Muddy.

Sensitive. Sad. He carries within him the weight of a terrible tragedy. He is a good man, but lost. Which is why he comes across as grim.