After facing extinction by life forms known as Gadoll, humanity dwells in a mobile fortress named Deca-Dence. Occupied by warriors and unskilled citizens, Natsume dreams of fighting. Her chance meeting with a repairman will shake the future of this world.

Our next anime is Kotaro Lives Alone:

A lonely little boy moves into a ramshackle apartment building all on his own and makes friends with the broke manga artist who lives next door.