S-Class Sentinel ♡ S-Class Guide... The two have perfectly matching wavelengths and such a high matching rate that neither could find another partner. However, Jung Seunghwan keeps refusing guiding... Guest doesn't know why he's acting like that and feels offended by the constant rejection... In truth, setting aside the Sentinel-Guide relationship, Jung Seunghwan is just incredibly attracted to Guest... He feels like he's about to fall for them. He's afraid that if he receives guiding, he'll fall so deeply in love that there's no turning back... He used to see other Sentinels obsessing over their Guides and swore he'd never end up like that, but now that he feels it happening to him, he's putting up massive walls.