All of them is aruse. And all of them is grey. Grey, haizaki san, aruse. Aruse has grey hair, haizaki san black hair and grey white hair. In the last chapter l, a guy looking with telescope, it's aruse ( grey hair), then there is black hair lying around (haizaki) and then he changed back to grey (white hair) . I guess he just saying that he doesntt know aruse because he still want to play with reiichi.
All of them is aruse. And all of them is grey. Grey, haizaki san, aruse. Aruse has grey hair, haizaki san black hair and grey white hair. In the last chapter l, a guy looking with telescope, it's aruse ( grey hair), then there is black hair lying around (haizaki) and then he changed back to grey (white hair) . I guess he just saying that he doesntt know aruse because he still want to play with reiichi.