Ah yes, they’re definitely a special kind of close friends. You know, the ones that share all their belongings and help each other out unconditionally. I believe there was an archaic term for it, oh yeah, *spouses* xD
Ah yes, Mikochi just waiting for Suisei in bed as usual and Sui-chan trying to lie down, but then giving up because there is no room. Truly they are roommates.