Primary

• Ryuuji Takasu Son of Yasuko Takasu
• Ryuuji Takasu In love with Minori Kushieda
• Ryuuji Takasu Best friend of Yuusaku Kitamura

Extended

• Minori Kushieda In love with Ryuuji Takasu
• Minori Kushieda Friend of Taiga Aisaka
• Yasuko Takasu Mother of Ryuuji Takasu