In addition to solving the imminent food supply problem of the main nest "Qingqiu City", the protagonist also plans to carry out a drastic renovation of the main nest.

As the main nest of the Big-Headed Ant Kingdom, "Qingqiu City" has more than 100,000 ant mouths, and its nest structure is complex and large-scale, which is second to none in the entire Big-headed Ant Kingdom, and it is not inferior to the big cities of the Paving Ant Barbarian Kingdom.

However, the protagonist also notices that this complexity and grandeur is more due to scale expansion than quality improvement.

In other words, the main nest "Qingqiu City" is more like four or five ordinary secondary nests stacked together, and there is no ingenuity in the design.

Also, although the big head ant kingdom talks about the king's meeting composed of male ants, in the matter of nest construction, they will simply give orders to expand the nest or build more nests.

The specific design and execution are completely the business of the worker ants.

As nesting creatures, worker ants are born to burrow, they know how to build nests and passages, how to avoid loose soil landslides, and how to build a drainage system for the nest foundation to ensure safety during the rainy season.

However, all of this is instinctual and rarely involves deliberate design.

This leads to the fact that the passage of the entire ant nest seems to extend in all directions, but it is more like the vascular network of the human body, which can easily reach any roadway from the main passage, but the different lanes cannot be quickly and directly reached, but must bypass the main passage.

What's worse is that due to the need for defense, all the entrances and exits are concentrated together, and as the size of the nest expands, the worker ants who live in the most remote places need to spend more time to go out, greatly increasing the cost of commuting.

In addition, although the entire main nest "Qingqiu City" is built under a small hill, at first glance it looks like the ant mounds that can be found everywhere in Africa.

But after moving in, the protagonist realizes that this is just an ordinary ant city built under the hills.

Perhaps the original builder of the main nest chose this nest site because he thought it was safer during the rainy season.

And the ant mounds built by those African termites, termite hills, are much more advanced than such underground nests. Even though these big-headed ants already have intelligence, their construction skills are not as good as the original terrestrial termites.

Termite Hill is a nest where termites use their own secretions to clay and pile up crushed grass and dirt. The mountain is home to termites, where they live and reproduce. In Africa and Australia, a variety of termite hills can be found everywhere, especially in grassland and forest areas.

Termite Hill is both sturdy and functional, with termites using clay brought from the ground, mixed with sawdust and grass collected from the ground, and mixed with their own saliva and other secretions. These things are glued together, and when the sun scorches, they become building materials as hard as concrete.

Due to the different species of termites, the difference in geographical environment, and the age of the nest construction, the shape, size and color of termite hills are very different. The shape is mountain-shaped, mound-shaped, mound-shaped or columnar, and the height of the nest generally ranges from 1-5 meters, and there are also about 10 meters or even higher. The color varies from place to place depending on the soil, ranging from red, brick red, yellow, to gray. The distribution of termite hills can be scattered or concentrated and contiguous. In the inland delta of the Niger River in Mali, there is a spectacular termite mountain.

These termite hills are an architectural marvel of the insect world, not only to prevent invasions of foreign enemies. Protect the safety of ant colonies and queens, and have a comfortable environment that is warm in winter and cool in summer, with almost constant temperature and humidity.

The ant ** part is generally a tree-like structure, intricate channels, wide and narrow, the narrow channel is divergent upward, merges into a wide hole downward, and extends to the cool underground depth, this structure through the sky and the ground, so that the air circulation outside the nest is convenient. Termites erect tall, thin-walled, chimney-like ventilation pipes around the mounds, using the convection of air caused by sunlight to achieve a balanced nest temperature.

Termites even dig tunnels to "pump" groundwater to help dissipate heat. In rainy places, the anthill is like a big mushroom, allowing rainwater to flow smoothly without damaging the anthill. Such a huge, complex and ingenious building, but all of them are piled up by blind termite worker ants carrying a small piece of soil, which has to be amazing.

Proportionally, termites build a termite mountain, the equivalent of a 1,500-metre-tall skyscraper – almost twice as tall as the world's tallest building today, the 818-metre Burj Khalifa.

These termite hills also served as inspiration for human architects, such as architect Mick Peel. Some of his most famous works are the Eastgate Mall in Harare, the capital of Zimbabwe, and the Melbourne Municipal Office Building No. 2 (CH2).

Opened in 1996, Eastgate Mall was probably the first building in the world to incorporate natural cooling to such a mature scale. It is located in the tropics, and the temperature in Zimbabwe can vary from 10°C to 40°C in a day. So, during the day, the building stores heat in its very high heat capacity structural substance; When it cools down at night, slowly release the temperature. The result is 5,600 square meters of retail space, 26,000 square meters of office space, and is cool and pleasant, although not air-conditioned. It consumes one-tenth the energy of a conventional building of its size.

Located in the heart of Melbourne, CH2 has won the United Nations Architecture Award for its design with sustainable features and is Australia's first six-star green building. Construction began in early 2004 and was officially opened in August 2006, with a total construction area of 12,500 square meters.

The protagonist's ideal ant nest is a nest that has both human design and ant construction ability, and the termite mountain in Africa and Mick Peel's architectural design provide inspiration for the protagonist.

So, under the command of the protagonist, the transformation of the entire nest began in full swing.

A large number of broken roads have been opened up to form a three-dimensional traffic network, some small roads have been transformed into exhaust pipes, and the original drainage channels deep into the ground have been widened.

Many nests also used to function as roads, but after the renovation, all nests have a maximum of two entrances and exits, which are separated from the road and avoid the need to cross the nest to move. This also makes it convenient for each nest to better assume the functions of bedrooms and warehouses.

The protagonist also built a dormitory in the style of "Dongyang Castle" for himself, the male ant and the queen ant in the safety of the depths.

The entire renovation project lasted for nearly a year, which is a later story.