Xingchen did wait with anticipation. He didn't expect Xue Yang to find him quickly. He wanted him to search for him, chase him, and give him a challenging game especially during a time when the train is traveling through the void and it will be a while before the next mission.

He doesn't question that it's Xue Yang stepping in through the open door and hearing the door shut. He knew he is trapped and captured. The very thought that a dangerous man caught him creates a forbidden feeling in him, and he wonders with fear and terror, and yet in excitement. He is pure and innocent and new to this feeling, and yet stirs an awakening in him.

He's not resisting him as he tips his head back, kissing him, welcoming him, inviting him, and accepting him. He parts his lips open to invite him to explore and taste.