noun, noun which may take the genitive case particle 'no'
right behind; directly behind
Emphasizes the position exactly at the back of something, with no gap or offset. Often used with に or の.
彼は私の真後ろに立っていた。
He was standing right behind me.
真後ろの席に座った。
I sat in the seat directly behind.
Compound of 真 (ま, 'true, exact') and 後ろ (うしろ, 'behind'). The prefix 真 intensifies the positional meaning.