Chapters 3 through 12 of the light novel detail the daily life and early lessons of Haruki Sorakoshi, a young pioneer in Hokkaido, and his interactions with his companions and the unique environment. The narrative begins with Haruki being woken by Rea, a plant-like creature sensitive to cold, who nudges him to rekindle the wood stove. This establishes their domestic routine and Rea's fear of fire, contrasting with Haruki's practical approach. He is then joined in his warm futon by Esta and Maat, who seek comfort.
The story shifts to Haruki and Karen Kurosaki, a new settler, planting potato seeds in Hokkaido. Haruki patiently teaches Karen about the proper way to plant them, emphasizing that the cut side should face upwards to prevent rot and that potatoes, like people, have preferences for comfort. He explains that overcrowding leads to territorial disputes among the potato plants, a lesson Karen finds overwhelming as she witnesses the "fights" in her newly planted rows, highlighting the harsh realities of agriculture in Hokkaido.
Following this, Haruki takes Karen on a drive to Ainu Lake in Kushiro. His intention is not leisure but to educate her about surviving in Hokkaido, a land fraught with dangers like echinococcus in rivers and brown bears in the mountains. He stresses the importance of "coexistence" with nature, explaining that attempting to eliminate all dangers disrupts the ecosystem. At Ainu Lake, Haruki shares its geological origin from a "divorce" between two mountains and mentions the local fish, benizake and himemasu, which are so lively they've sunk a sightseeing boat. He then introduces Karen to marimo, explaining how the spherical algae are formed by lake currents. To Karen's shock, Haruki reveals that marimo can bite and are eaten raw as sashimi, a delicacy with a unique texture and beauty benefits. This experience serves as a crucial lesson for Karen: appearances can be deceiving, and one must be cautious when interacting with Hokkaido's flora and fauna.
The narrative then moves to Hokkaido Jingu, a significant shrine where Haruki prays for increased "presence," a personal goal, while Karen prays for the strength to protect others. This scene underscores Haruki's underlying motivations and Karen's developing sense of responsibility.
Later, Haruki ventures into the "Garage Dungeon" beneath his home to gather large, delicious dungeon-grown onions. He encounters three onion monsters that, instead of attacking, tremble and prostrate themselves before him. Moved by their fear and apparent helplessness, Haruki decides not to harvest them. Instead, he releases them into a fallow field on his property, establishing rules for their coexistence. He envisions them potentially growing into a new onion field, a poignant reminder of the lost onion fields of his mentor, Kitora, and his wife.
Finally, as winter approaches, Haruki finds the three onion monsters shivering in his garden. Realizing they cannot survive the cold and that dungeon onions do not produce seeds, he brings them inside to warm by the stove. He reiterates the rules of coexistence, and Rea, the plant creature, observes them with a mixture of apprehension and acceptance. The chapter concludes with the onions, having been led to a new "paradise" by a "masked god," now facing a new threat: Haruki himself, whose gaze is described as "fervent," hinting at a potential future conflict or interaction.