Often describes as the adult pair, or the subtle pair (because of their subtlety of showing their affections). They used to be closed to each other around Jr. era until 2003 and went into an 'ice age' era around 2006-2009/10.
Jun used to be Sho's no. 1 fan and he don't want to give his Sho-kun to anybody, even the fans. But because of something happened, they began to ignoring each other. And now, they are trying to 'melts the ice' between them.