Which servant is this?
One of the strongest swordsmen of the Edo Yagyuu. A demon of rationality that gaze at everything with a reasoning of ice, unswayed by emotion. Methodology equals rationality; in other words, by mastering the sword, everything will naturally be fulfilled without any futility─── Never speaking of his passions, he does not become impetuous or impatient. Thoroughly carries out the optimal, shortest measures in order to achieve an objective with the utmost coolness. A man of ice and steel who is reliable as an ally, but extremely terrifying once he becomes an enemy.You have 5 minutes to answer (case insensitive)
