Dazai Osamu Is Such a Frail Servant

Just when he was about to fulfill his wish and head to the Sanzu River, Dazai Osamu was summoned to another world by a tiny slug of a runt. “I really feel like causing some trouble,” said Mr. Dazai, who preferred to remain anonymous. Well, since we're here... The other participants in the Fourth Holy Grail War: “Is the combat strength of this Master and Servant pair reversed?”

Theme: Even the Double Black duo in another world belongs together