If you want to complete 100% of the game and get all achievements available in A Plague Tale: Innocence, you will have to feed Hugo in Chapter II. The next section will tell you how to do this.
At the very beginning of the stage, you will get to the market. Hugo runs up to one of the stalls, wanting to take an apple. There are no foods around the place. You need to find food in the city.
You have to get to an apple tree. You will find it in the most polluted part of the city, near the square to which you are heading. It is easy to miss this moment, because Hugo will pay attention to a smell. Instead of going straight ahead, turn right. Thus, you get to a small clearing with a growing tree.
To get the achievement, you have to give one fruit to Hugo.?