My Sister Just Loves Me Too Much (She's Not a Yandere!)

Ding Ge wakes up on the morning after his college entrance exam—except he's lived this life before. In his first timeline, his parents showered affection on his adopted brother while shipping him off to boarding school, where he fell into the clutches of a possessive girl who caged him like a pet. She forbade him from even glancing at other women, her obsessive love spiraling into violence. Then his foster brother framed him, landing him in a foreign psychiatric ward for years. But now, armed with memories of that nightmare, Ding Ge has a second chance. This time, he'll protect himself, uncove…