Sayo (紗代 ), full name Sayo Marugami (丸神 紗代 ) is a supporting character featured in Stay Cool, Kobayashi-san!: A River City Ransom Story. She is described as being cheerful, energetic, and as someone who has a passionate heart for others.
Sayo is a relative and childhood friend of Masao Kobayashi and is one of the few people who understands him.
Background[]
Sayo is first mentioned by Kyōsuke Otonashi as he tells Kobayashi that he'll get her to help. He later informs Kobayashi that Sayo and the others have confirmed that there's a large number of strong fighters in the area and that taking out a large number of them will draw out their leaders. When Markers start appearing, Otonashi relays Sayo's advice to Kobayashi on taking them out first as regular enemies become more powerful if one is present. Although she has the support of Kōki Mizoguchi, Sayo may also be receiving instructions from Takeru Tōdō.
Later in the story, Sayo finds herself in the sights of No. 29 as a target, though would manage to escape which leads him to instead set his sights on Kobayashi. Upon meeting No. 29, he will offer a reward to Kobayashi if he brings her Sayo, though begins to fight him after not being given an answer. She would later ask Otonashi about what has been going on.
When all of the leaders are defeated, Sayo will come to meet Kobayashi after not seeing each other in a while and will tell him about what she's been doing. She mentions that she had her eyes on No. 29 and describes him as being persistent. Kobayashi notes Sayo as being loud before realizing who she was, which has her worryingly ask why he made himself sound so disappointed and makes her think about how little he's changed since they were kids. Sayo then informs Kobayashi that because he beat the five leaders, the mysterious organization's supposed top leader Hirukesu begun making his move. She warns that Hirukesu is equipped with powerful armor which gives Kobayashi a slim chance in beating him, though goes on to state that she believes Kobayashi will win anyway as Mizoguchi is with him.