Sukisho! - S01

Hashiba Sora wakes up with no memory after falling from a fourth-floor window. When Fujimori Sunao transfers to his school and becomes his new roommate, Fujimori insists on calling him "Ran." Both boys have split personalities-Yoru and Ran-that formed in their childhood. Though Fujimori and Hashiba are unsettled by how intimately Yoru and Ran behave at night, they slowly grow closer themselves. As their relationship deepens, Hashiba begins uncovering disturbing truths about their past.