Sutezo, the youngest and only surviving son in his family during Japan's severe redface pox decline in males, avoided the family business. He believed men were too valuable for labor and should stay protected indoors. Instead, he earned income through relationships with multiple women, finding this more profitable than traditional work. His striking resemblance to Arikoto, a monk serving the Ōoku, led Lady Kasuga to recruit him as a replacement concubine for Shogun Iemitsu after Arikoto failed to produce an heir. Sutezo eagerly accepted, viewing Ōoku life as a privileged escape, though he underestimated its restrictions. Within the Ōoku, Sutezo displayed a cheerful, talkative nature. He formed a respectful relationship with Arikoto despite being his intended successor. Sutezo successfully fathered a daughter, Princess Chiyo, with Iemitsu. In recognition, Iemitsu renamed him O-Raku and formally acknowledged him as Chiyo's father. This status made Sutezo expect promotion in the Ōoku hierarchy. However, a celebratory fall caused partial paralysis, leaving him unable to perform his duties. The court, including Iemitsu, largely abandoned him afterward; only Arikoto maintained contact. During a later redface pox outbreak, Sutezo contracted the disease from his infected caregiver. Arikoto cared for him despite the mortal risk. Sutezo expressed confusion over Arikoto's kindness and gratitude toward him. He died wishing to see his daughter one final time. Iemitsu ordered a respectful burial but showed no personal grief, highlighting Sutezo's ultimate replaceability within the Ōoku system.