"A room with 10 square meters of space is the norm when living alone in a city in Japan.
However, a room of 10 square meters is way too cramped!
How in the world are people able to live in such spaces?!"
In other words, taking advantage of vertical space is the key.
Rooms that appear otherwise cramped and inhabitable at first glance can be quite the opposite as long as you choose the room's layout wisely.