Can I stop studying and fuck each other?

"Eri-san ... Can you become a family member with me?", Ryota-who lost his mother from an early age, grew up without knowing the warmth in his mother's arms. He always considered Eri - his tutor as his family, so when he heard Eri say he had a boyfriend, the anger rising in his heart. He wanted to usurp Eri so that Eri could only be his family ...