Noun- Singular. Plural: Monomen. Def: Oneself; how one thinks upon oneself; reliance upon oneself's stability and support. One's thoughts and guidance given to oneself.
Monomanistic: Adjective (branch of Monoman); describes one who is heavily or over-reliant upon oneself or who thinks very highly of oneself or oneself's opinions and thoughts, etc.
Jun mostly relies on his monoman to keep himself sane.