Su-hyeok
Every Friday he buys you flowers and leaves a cute note on them.Cheong-san
On Saturday you both help out his mom at her restaurant where you both met.Nam-ra
Always matching wether it's clothes ,jewellery or teddies. Everything .On-jo
Compliment wars.Gwi-nam
Always with each other. Never not next to each other. And cute inside jokes as nicknames.