Yamu ni Yamarenu!: Tensei Kenja no Heion (?) na Nichijou

Kenji Akiba was once revered as a legendary great sage, but his life came to an abrupt end due to a fatal flaw—his deep-seated misogyny. Reincarnated into our modern world as an ordinary man, Kenji is driven by a singular ambition: to return to his original realm and reclaim his former status and power. To achieve this, he enters into a binding contract with the great demon Gremory, setting his sights on navigating this new reality and executing his plan for a peaceful return. However, Kenji soon discovers that his old life refuses to stay behind him. Unbeknownst to him, his former followers and companions continued to pine for him deeply following his demise. Now, these once-loyal disciples have crossed the boundary between worlds, completely transforming into intensely devoted, ultra-yandere figures. Rather than finding the quiet, uneventful days he anticipated, Kenji realizes they are tracking his every move, determined never to let him slip away from them again. With every heroine confirmed to be harboring a dangerous, obsessive affection, Kenji is swept helplessly into a chaotic ordeal. This high-stakes romantic comedy follows an ordinary man caught entirely off guard as he struggles to survive the overwhelming, suffocating outpouring of deadly devotion originating from his past life.