English:
Things you have to know, before you read this fic:
1. In Japan, people use suffics behind persons names:
lastname-San: if you aren't close or just acquainted
Lastname-Kun: only by males, if you're acquainted, or friends
Lastname-Chan: only by females, if you're allowed to, or close
Lastname-none: if you're friends or informal
Firstname-san: close, or allowed by the person to be called by his givenname, not yet used to calling the person by first name
Firstname-kun: only by males, close, or allowed by the person to be called by his givenname
Firstname-Chan: only by females, if you're allowed to or close
Firstname-none: very close, or allowed by the person to be called by his givenname
Nickname: Friends, close, very close, or allowed by the person to be called so
2. Senpai is an student, whose in a higher grade than yourself
Kohai is an student, whose in a lower grade than yourself
3. The Mainrole is Suzuki Sayuuki, her childhoodfriend and senpai is Kasamatsu Yukio, the captain of the basketballclub Kise is in, her best friend and love interest is Kise Ryouta. Naomi Naruko is Kises girlfriend.
4. Suzuki is called by kasamatsu by her firstname 'Sayuuki', and is the only girl he can talk normally to. She is called by Kise by the nickname 'Yuuki-chii'. Naomi calls her with her last name and the suffix -san 'Suzuki-san'.
Kise is called by his best friend Suzuki with the nickname 'Ryou'. He is called by his girlfriend Naomi by his givenname 'Ryouta'. He is called by his senpai and captain Kasamatsu 'Kise'.
Kasamatsu is called by his childhoodfriend and kohai Suzuki with his firstname and the suffix -kun 'Yukio-kun'. He is called by his kohai and teammate Kise woth his last name and the suffix -senpai 'Kasamatsu-senpai'. By Naomi he is called by his lastname and the suffix -san 'Kasamatsu-san'.
Naomi is called by her boyfriend Kise with her givenname 'Naruko'. By the rest she is called with her lastname and the suffix -san 'Naomi-san'.
5. Elementry school is six years long and Suzuki went from her first till her fourth year with Kasamatsu in the same School, because he is two years older than her and with Kise in her fifth and sixth year, because he transferred in their fifth year to her school.
Middle School is three years long and there Suzuki and Kise met the Generation of Miracles (a group of basketball prodigies, who are all in the same year) and Kise became part of them in his second year.
High School is also three years long and there Suzuki met her childhood friend Kasamatsu again.