  We offer a possibility that the nuclear system with protons, Z = 8 has a
large deformation at neutrons, N = 20; 28O that is beyond the neutron drip
line. According to our previous works [arXiv: 1604.05013, 1604.02786,
1604.01017], it is expected that the ferro-deformation would occur at Z = 8, N
= 20 through a shape phase transition at N = 18 out of N =16. The shape
transition can be explained in terms of isospin dependent spin-orbital
interactions between neutrons in the d3/2 orbital and protons in the d5/2
orbital, by yielding both the neutron and the proton pseudo-shell
configurations built on each combined subshells. We argue that such a large
deformation at N = 18 would be responsible for the 26O to be unbound, leading
to a ground state neutron emitter. The ferro-deformation is mapped on the
nuclear chart such that is around the following critical proton, neutron
coordinates, (Z, N); (64, 104), (40, 64), (20, 40), (8, 20). This configuration
depicts a beautiful pattern coming from a harmonious order in the microscopic
quantum world.
