noun
collaborative essay series; relay essay
A series of essays where multiple writers take turns, each building on or responding to the previous one. Wasei-eigo; not a direct English term.
wasei-eigo (Japanese-coined English), from relay essay
雑誌でリレーエッセイを連載している。
They are running a collaborative essay series in the magazine.
リレーエッセイの次の執筆者は誰ですか？
Who is the next writer for the relay essay?