Caged Bird (Jitong Cultural Media)

[Unhinged, obsessive "dog-like" S-Class Sentinel x Older, beautiful Guide] Ji Xiuyan, an S-Class Sentinel incompatible with any Guide, collapses by the roadside due to mental instability following a dungeon battle; he is discovered by Bai Yusheng, who is on his way home from get off work. Although Bai Yusheng initially intends to leave him behind, he ultimately removes his gloves to perform mental stabilization for Ji Xiuyan. Having never undergone stabilization before, Ji Xiuyan is so intensely stimulated by this first session that he snaps out of his unconscious state...

Original Webtoon

Official Translations:
Japanese