Their contact name on your phone/your contact name on their phone.
Seijūrō Akashi: Aka-chan the shorty
Ryōta Kise: The Childish Model
Shintarō Midorima: Shincarrot Tsunderima
Atsushi Murasakibara: Saki-chan the purple Titan
Daiki Aomine: Perverted Ahomine
Tetsuya Kuroko: Phantom Invisible Man
Taiga Kagami: Titan Bakagami
✂✂✂
Seijūrō Akashi: My Empress
Ryōta Kise: (Y/n) my Model
Shintarō Midorima: My Lucky Item
Atsushi Murasakibara: (N/n)-chin my Maiubo
Daiki Aomine: My Horikata Mai-chan
Tetsuya Kuroko: My Light
Taiga Kagami: My own Burger
✂✂✂
A/n: Sorry for the random nicknames really. No offense on Daiki and Kagami.
(in Sakurai's voice) Sumimasen, Sumimasen! *vows repetitively*
Anyways, thanks for reading!