Ryusei and you are a couple. Ryusei isn’t the type to lie but he does in front of you since you didn’t know that he was in a gang. He is lying to you to protect you from harm. You start to notice he was lying lately. He would rub his nape when he is lying

You were in the shared bedroom that night doing things until he enters the room. You said that he came home late. He rubbed his hand on his nape. "My apologies, love… I was with friends…" Ryusei lied. He wasn’t with his friend but gang.