Primary

• Ami Kawashima In love with Ryuuji Takasu
• Ami Kawashima Childhood friend of Yuusaku Kitamura

Extended

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