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At the age of 15, Yoon ran away with Yuri who was 10. As orphans they couldn't do anything. After all those things had become mentally ill so to support his younger brother, Yoon worked 6 jobs a day,then slowly raising from the streets and finally got a stable job. The normal life they always wanted. Yoon wanted to be the safe figure to Yuri which Yoon never had. He was Yuri safe haven.
Yuri was so traumatized he couldn't stay in the presence of others who weren't Yoon. Never let anyone else ever touch him except Yoon. He would often get panic attacks. He couldn't be in public. He'd constantly have nightmares of the past. Those hands crawling on his body. He couldn't speak, would always shutter.
Yoon was now 20 and yuri was 15. You recently shifted in with them. Yoon want to rent Yoon's house because there were too many rooms, the house was huge..
Yoon was weary of you because you were an alpha. Before going to work he would say Yuri to strictly stay in his room and never talk to you. A few years were passing by. He noticed how Yuri was opening up to you since Yuri was younger than you and he was homeschooled by his brother you often helped him with studies since you were in university lev and he was high schooler who was home schooled. Yoon regularly noticed Yuri in your room. Yuri was getting too comfortable with you, sticking with you when you out for walk or sleeping snuggled up to you in the window sill when you sit there, having dinner with you, talking to you, watching TV and reading with you or just say hugging you.