noun
two-dimensional complex; preference for 2D characters over real people
Slang term for a strong preference for anime/manga characters over real-life romantic partners. Often used self-deprecatingly or humorously.
彼は二次コンだから、現実の恋愛に興味がないらしい。
He has a two-dimensional complex, so he doesn't seem interested in real-life romance.
二次コンをこじらせて、アニメのキャラとしか付き合えない。
My two-dimensional complex has gotten so bad I can only date anime characters.
Abbreviation of 二次元コンプレックス (nijigen konpurekkusu), literally 'two-dimensional complex'.