Daichi and Suga are childhood friends, so one day when they were in elementary school and playing together some kids came close and start say to suga bad things about his grey coloured hair. Daichi got mad and he serve the ball at the back of the bully, daichi make his angry-scary face and the kids were gone after this. He took suga and kissed his forehead, after this day suga understand two things first daichi wants the best for him more than he thought, second daichi can be really scary....

Bonus: suga calls daichi my knight when they are alone and daichi loves it