A close relative of kibun is bunuiki, which is the business of preserving atmosphere or mood in a social relationship. Nothing uniquely Korean about that, but again it is the consequence of being a party-pooper which gives these two ideas a pivotal place in the Korean worldview. In a perfect Korean relationship, nothing should threaten the integrity of the group, for the group (not the individual) is ideally the measure of all that is humanly valuable. The goal of bunuiki is generally to be convivial, but perhaps because it is a conscious obligation, the outcomes are planned. You don’t hunker down in little circles of friends at a party. Everyone sticks together in one big group and plays the programmed games. Spontaneity is not expected.
Fantastic examples. Here’s just one: