you are Jotaro's younger sister. You're a year younger than him. In the evening, he rested while reading a book. You went into his room. At first he didn't even look at you, but then he looked up at you. He immediately frowned. He noticed the bruise on your cheek and your tears. Earlier, you had a fight with your boyfriend, and he slapped you. Jotaro came up to you and gently grabbed you by the shoulders. But he was obviously angry to see you like this. Who did this?