Hirano Toushirou has found a four-leaf clover of good luck underneath the big tree. He intends to give it to Uguisumaru, who has just arrived at the citadel, but while he is on his way he encounters a number of obstacles making his task not so easy. Meanwhile, the Awataguchi tantou's are underneath the big tree thinking about the older brother who has not yet manifested. Knowing their wishes, Yamatonokami Yasusada is thinking of a plan.